1.  profound(a = adj.all) - showing intellectual penetration or emotional depth; "the differences are profound"; "a profound insight"; "a profound book"; "a profound mind"; "profound contempt"; "profound regret"
Antonym: superficial
Derived forms noun profoundness₅, noun profoundness₃, noun profoundness₁, noun profundity₂, noun profundity₃, noun profundity₁

2.  profound(s = adj.all) - of the greatest intensity; complete; "a profound silence"; "a state of profound shock"
Derived form noun profoundness₁

3.  profound(s = adj.all) fundamental - far-reaching and thoroughgoing in effect especially on the nature of something; "the fundamental revolution in human values that has occurred"; "the book underwent fundamental changes"; "committed the fundamental error of confusing spending with extravagance"; "profound social changes"
Derived form noun profoundness₂

4.  profound(s = adj.all) - coming from deep within one; "a profound sigh"
Derived form noun profoundness₁

5.  profound(s = adj.all) heavy, sound, wakeless - (of sleep) deep and complete; "a heavy sleep"; "fell into a profound sleep"; "a sound sleeper"; "deep wakeless sleep"
Derived form noun profoundness₁

6.  profound(s = adj.all) unfathomed, unplumbed, unsounded - situated at or extending to great depth; too deep to have been sounded or plumbed; "the profound depths of the sea"; "the dark unfathomed caves of ocean"; "unplumbed depths of the sea"; "remote and unsounded caverns"
Derived forms noun profoundness₄, noun profundity₄

1.  Descending far below the surface; opening or reaching to a great depth; deep. Milton. [1913 Webster]

2.  Intellectually deep; entering far into subjects; reaching to the bottom of a matter, or of a branch of learning; thorough; as, a profound investigation or treatise; a profound scholar; profound wisdom. [1913 Webster]

3.  Characterized by intensity; deeply felt; pervading; overmastering; far-reaching; strongly impressed; as, a profound sleep. Shak. [1913 Webster]
"Of the profound corruption of this class there can be no doubt." [1913 Webster]

4.  Bending low, exhibiting or expressing deep humility; lowly; submissive; as, a profound bow. [1913 Webster]
"What humble gestures! What profound reverence!" [1913 Webster]

1.  The deep; the sea; the ocean. [1913 Webster]
"God in the fathomless profound
Hath all this choice commanders drowned." [1913 Webster]

2.  An abyss. Milton. [1913 Webster]

   To cause to sink deeply; to cause to dive or penetrate far down. Sir T. Browne. [1913 Webster]

   To dive deeply; to penetrate. [1913 Webster]

profound, adj. & n.
--adj. (profounder, profoundest)
1 a having or showing great knowledge or insight (a profound treatise). b demanding deep study or thought (profound doctrines).
2 (of a state or quality) deep, intense, unqualified (a profound sleep; profound indifference).
3 at or extending to a great depth (profound crevasses).
4 (of a sigh) deep-drawn.
5 (of a disease) deep-seated.
--n. (prec. by the) poet. the vast depth (of the ocean, soul, etc.).

Derivative:
profoundly adv. profoundness n. profundity n. (pl. -ies).

Etymology:
ME f. AF & OF profund, profond f. L profundus deep (as PRO-(1), fundus bottom)

N  greatness, magnitude, size, multitude, immensity, enormity, infinity, might, strength, intensity, fullness, importance, great quantity, quantity, deal, power, sight, pot, volume, world, mass, heap, stock, peck, bushel, load, cargo, cartload, wagonload, shipload, flood, spring tide, abundance, principal part, chief part, main part, greater part, major part, best part, essential part, bulk, mass, great, greater, large, considerable, fair, above par, big, huge, Herculean, cyclopean, ample, abundant, full, intense, strong, sound, passing, heavy, plenary, deep, high, signal, at its height, in the zenith, world-wide, widespread, far-famed, extensive, wholesale, many, goodly, noble, precious, mighty, sad, grave, heavy, serious, far gone, arrant, downright, utter, uttermost, crass, gross, arch, profound, intense, consummate, rank, uninitiated, red-hot, desperate, glaring, flagrant, stark staring, thorough-paced, thoroughgoing, roaring, thumping, extraordinary, important, unsurpassed, complete, august, grand, dignified, sublime, majestic, vast, immense, enormous, extreme, inordinate, excessive, extravagant, exorbitant, outrageous, preposterous, unconscionable, swinging, monstrous, overgrown, towering, stupendous, prodigious, astonishing, incredible, marvelous, unlimited, unapproachable, unutterable, indescribable, ineffable, unspeakable, inexpressible, beyond expression, fabulous, undiminished, unabated, unreduced, unrestricted, absolute, positive, stark, decided, unequivocal, essential, perfect, finished, remarkable, of mark, marked, pointed, veriest, noteworthy, renowned, truly, decidedly, unequivocally, purely, absolutely, seriously, essentially, fundamentally, radically, downright, in all conscience, for the most part, in the main, entirely, abundantly, widely, far and wide, greatly, much, muckle, well, indeed, very, very much, a deal, no end of, most, not a little, pretty, pretty well, enough, in a great measure, richly, to a large extent, to a great extent, to a gigantic extent, on a large scale, so, never so, ever so, ever so dole, scrap, shred, tag, splinter, rag, much, by wholesale, mighty, powerfully, with a witness, ultra, in the extreme, extremely, exceedingly, intensely, exquisitely, acutely, indefinitely, immeasurably, beyond compare, beyond comparison, beyond measure, beyond all bounds, incalculably, infinitely, preeminently, superlatively, immoderately, monstrously, preposterously, inordinately, exorbitantly, excessively, enormously, out of all proportion, with a vengeance, particularly, remarkably, singularly, curiously, uncommonly, unusually, peculiarly, notably, signally, strikingly, pointedly, mainly, chiefly, famously, egregiously, prominently, glaringly, emphatically, kat exochin, strangely, wonderfully, amazingly, surprisingly, astonishingly, incredibly, marvelously, awfully, stupendously, peculiarly, furiously, severely, desperately, tremendously, extravagantly, confoundedly, deucedly, devilishly, with a vengeance, a outrance, a toute outrance, painfully, sadly, grossly, sorely, bitterly, piteously, grievously, miserably, cruelly, woefully, lamentably, shockingly, frightfully, dreadfully, fearfully, terribly, horribly, a maximis ad minima, greatness knows itself, mightiest powers by deepest calms are fed, minimum decet libere cui multum licet, some are born great, some achieve greatness, and some have greatness thrust upon them.

N  cunning, craft, cunningness, craftiness, subtlety, artificiality, maneuvering, temporization, circumvention, chicane, chicanery, sharp practice, knavery, jugglery, concealment, guile, doubling, duplicity, foul play, diplomacy, politics, Machiavelism, jobbery, backstairs influence, art, artifice, device, machination, plot, maneuver, stratagem, dodge, sidestep, artful dodge, wile, trick, trickery, ruse, ruse de guerre, finesse, side blow, thin end of the wedge, shift, go by, subterfuge, evasion, white lie, juggle, tour de force, tricks of the trade, tricks upon travelers, espieglerie, net, trap, Ulysses, Machiavel, sly boots, fox, reynard, Scotchman, Jew, Yankee, intriguer, intrigant, floater, Indian giver, keener, repeater, cunning, crafty, artful, skillful, subtle, feline, vulpine, cunning as a fox, cunning as a serpent, deep, deep laid, profound, designing, contriving, intriguing, strategic, diplomatic, politic, Machiavelian, timeserving, artificial, tricky, tricksy, wily, sly, slim, insidious, stealthy, underhand, subdolous, deceitful, slippery as an eel, evasive, crooked, arch, pawky, shrewd, acute, sharp, sharp as a tack, sharp as a needle, canny, astute, leery, knowing, up to snuff, too clever by half, not to be caught with chaff, tactful, diplomatic, politic, polite, cunningly, slyly, slily, on the sly, by a side wind, diamond cut diamond, a' bis ou a blanc, fin contre fin, something is rotten in the state of Denmark.

N  feeling, suffering, endurance, tolerance, sufferance, supportance, experience, response, sympathy, impression, inspiration, affection, sensation, emotion, pathos, deep sense, warmth, glow, unction, gusto, vehemence, fervor, fervency, heartiness, cordiality, earnestness, eagerness, empressement, gush, ardor, zeal, passion, enthusiasm, verve, furore, fanaticism, excitation of feeling, fullness of the heart, passion, ecstasy, blush, suffusion, flush, hectic, tingling, thrill, turn, shock, agitation, quiver, heaving, flutter, flurry, fluster, twitter, tremor, throb, throbbing, pulsation, palpitation, panting, trepidation, perturbation, ruffle, hurry of spirits, pother, stew, ferment, state of excitement, feeling, sentient, sensuous, sensorial, sensory, emotive, emotional, of feeling, with feeling, warm, quick, lively, smart, strong, sharp, acute, cutting, piercing, incisive, keen, keen as a razor, trenchant, pungent, racy, piquant, poignant, caustic, impressive, deep, profound, indelible, deep felt, home felt, heartfelt, swelling, soul-stirring, deep-mouthed, heart-expanding, electric, thrilling, rapturous, ecstatic, earnest, wistful, eager, breathless, fervent, fervid, gushing, passionate, warm-hearted, hearty, cordial, sincere, zealous, enthusiastic, glowing, ardent, burning, red-hot, fiery, flaming, boiling over, pervading, penetrating, absorbing, rabid, raving, feverish, fanatical, hysterical, impetuous, impressed with, moved with, touched with, affected with, penetrated with, seized with, imbued with, devoured by, wrought up, struck all of a heap, rapt, in a quiver, enraptured, heart and soul, from the bottom of one's heart, ab imo pectore, at heart, con amore, heartily, devoutly, over head and ears, head over heels, the heart big, the heart full, the heart swelling, the heart beating, the heart pulsating, the heart throbbing, the heart thumping, the heart beating high, the heart melting, the heart overflowing, the heart bursting, the heart breaking, the heart goes out, a heart as big as all outdoors (sympathy).

N  depth, deepness, profundity, depression, hollow, pit, shaft, well, crater, gulf, bowels of the earth, botttomless pit, hell, soundings, depth of water, water, draught, submersion, plummet, sound, probe, sounding rod, sounding line, lead, bathymetry, sonar, side-looking sonar, bathometer, deep, deep seated, profound, sunk, buried, submerged, subaqueous, submarine, subterranean, subterraneous, subterrene, underground, bottomless, soundless, fathomless, unfathomed, unfathomable, abysmal, deep as a well, bathycolpian, benthal, benthopelagic, downreaching, yawning, knee deep, ankle deep, beyond one's depth, out of one's depth, over head and ears, mark twine, mark twain.

N  knowledge, cognizance, cognition, cognoscence, acquaintance, experience, ken, privity, insight, familiarity, comprehension, apprehension, recognition, appreciation, intuition, conscience, consciousness, perception, precognition, acroamatics, light, enlightenment, glimpse, inkling, glimmer, glimmering, dawn, scent, suspicion, impression, discovery, system of knowledge, body of knowledge, science, philosophy, pansophy, acroama, theory, aetiology, etiology, circle of the sciences, pandect, doctrine, body of doctrine, cyclopedia, encyclopedia, school, tree of knowledge, republic of letters, erudition, learning, lore, scholarship, reading, letters, literature, book madness, book learning, bookishness, bibliomania, bibliolatry, information, general information, store of knowledge, education, culture, menticulture, attainments, acquirements, acquisitions, accomplishments, proficiency, practical knowledge, liberal education, dilettantism, rudiments, deep knowledge, profound knowledge, solid knowledge, accurate knowledge, acroatic knowledge, acroamatic knowledge, vast knowledge, extensive knowledge, encyclopedic knowledge, encyclopedic learning, omniscience, pantology, march of intellect, progress of science, advance of science, advance of learning, schoolmaster abroad, scholar, knowing, cognitive, acroamatic, aware of, cognizant of, conscious of, acquainted with, made acquainted with, privy to, no stranger to, au fait with, au courant, in the secret, up to, alive to, behind the scenes, behind the curtain, let into, apprized of, informed of, undeceived, proficient with, versed with, read with, forward with, strong with, at home in, conversant with, familiar with, erudite, instructed, leaned, lettered, educated, well conned, well informed, well read, well grounded, well educated, enlightened, shrewd, savant, blue, bookish, scholastic, solid, profound, deep-read, book- learned, accomplished, omniscient, self-taught, known, ascertained, well-known, recognized, received, notorious, noted, proverbial, familiar, familiar as household words, familiar to every schoolboy, hackneyed, trite, trivial, commonplace, cognoscible, cognizable, to one's knowledge, to the best of one's knowledge, one's eyes being opened, ompredre tout c'est tout pardonner, to know all is to pardon all, empta dolore docet experientia, gnothi seauton, half our knowledge we must snatch not take, Jahre lehren mehr als Bucher, years teach more than books, knowledge comes but wisdom lingers, knowledge is power, les affaires font les hommes, nec scire fas est omnia, the amassed thought and experience of innumerable, was ich nicht weiss macht mich nicht heiss.

N  intelligence, wisdom, intelligence, capacity, comprehension, understanding, cuteness, sabe, savvy, intellect, nous, parts, sagacity, mother wit, wit, esprit, gumption, quick parts, grasp of intellect, acuteness, acumen, subtlety, penetration, perspicacy, perspicacity, discernment, due sense of, good judgment, discrimination, cunning, refinement, head, brains, headpiece, upper story, long head, eagle eye, eagle- glance, eye of a lynx, eye of a hawk, wisdom, sapience, sense, good sense, common sense, horse sense, plain sense, rationality, reason, reasonableness, judgment, solidity, depth, profundity, caliber, enlarged views, reach of thought, compass of thought, enlargement of mind, genius, inspiration, geist, fire of genius, heaven-born genius, soul, talent, prudence, vigilance, tact, foresight, sobriety, self-possession, aplomb, ballast, a bright thought, not a bad idea, Solomon-like wisdom, intelligent, quick of apprehension, keen, acute, alive, brainy, awake, bright, quick, sharp, quick witted, keen witted, clear witted, sharp-eyed, sharp sighted, sharp witted, wide- awake, canny, shrewd, astute, clear-headed, farsighted, discerning, perspicacious, penetrating, piercing, argute, quick-witted, nimble-witted, needle-witted, sharp as a needle, sharp as a tack, alive to, clever, arch, pas si bete, acute, wise, sage, sapient, sagacious, reasonable, rational, sound, in one's right mind, sensible, abnormis sapiens, judicious, strong- minded, unprejudiced, unbiased, unbigoted, unprepossessed, undazzled, unperplexed, unwarped judgment, impartial, equitable, fair, cool, cool-headed, long-headed, hardheaded, strong-headed, long- sighted, calculating, thoughtful, reflecting, solid, deep, profound, oracular, heaven-directed, heaven-born, prudent, sober, stand, solid, considerate, politic, wise in one's generation, watchful, provident, in advance of one' age, wise as a serpent, wise as Solomon, wise as Solon, wise, sensible, reasonable, judicious, well- thought-out, well-planned, well-judged, well-advised, prudent, politic, expedient, aut regem aut fatuum nasci oportet, but with the morning cool reflection came, flosculi sententiarum, les affaires font les hommes, mas vale saber que haber, mas vale ser necio que profiadol nemo solus sapit, nosce te, gnothi seauton, nullum magnum ingenium sine mixtura dementiae fuit, sapere aude, victrix fortunae sapientia.