1.  poignant(s = adj.all) affecting, touching - arousing affect; "the homecoming of the released hostages was an affecting scene"; "poignant grief cannot endure forever"; "his gratitude was simple and touching"
Derived form noun poignancy₂

2.  poignant(s = adj.all) - keenly distressing to the mind or feelings; "poignant anxiety"
Derived forms noun poignance₁, noun poignancy₁

1.  Pricking; piercing; sharp; pungent. [1913 Webster]

2.  Fig.: Pointed; keen; satirical. [1913 Webster]
"His wit . . . became more lively and poignant." [1913 Webster]

poignant, adj.
1 painfully sharp to the emotions or senses; deeply moving.
2 arousing sympathy.
3 sharp or pungent in taste or smell.
4 pleasantly piquant.

Derivative:
poignance n. poignancy n. poignantly adv.

Etymology:
ME f. OF, pres. part. of poindre prick f. L pungere

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  energy, physical energy, force, power, keenness, intensity, vigor, strength, elasticity, go, high pressure, fire, rush, acrimony, acritude, causiticity, virulence, poignancy, harshness, severity, edge, point, pungency, cantharides, seasoning, activity, agitation, effervescence, ferment, fermentation, ebullition, splutter, perturbation, stir, bustle, voluntary energy, quicksilver, resolution, exertion, excitation, strong, energetic, forcible, active, intense, deep-dyed, severe, keen, vivid, sharp, acute, incisive, trenchant, brisk, rousing, irritation, poignant, virulent, caustic, corrosive, mordant, harsh, stringent, double-edged, double-shotted, double- distilled, drastic, escharotic, racy, potent, radioactive, strongly, fortiter in re, with telling effect, the steam is up, vires acquirit eundo, the race by vigor not by vaunts is won.