affirmative(n = noun.communication) - a reply of affirmation; "he answered in the affirmative"
is a kind of affirmation, avouchment, avowal
has particulars: yes, yea, double negative
Antonym: negative
Derived form adjective affirmative₁

1.  affirmative(a = adj.all) affirmatory - affirming or giving assent; "an affirmative decision"; "affirmative votes"
Antonym: negative
Derived forms verb affirm₃, noun affirmative₁

2.  affirmative(s = adj.all) optimistic - expecting the best; "an affirmative outlook"
Derived form noun affirmativeness₁

3.  affirmative(s = adj.all) approbative, approbatory, approving, plausive - expressing or manifesting praise or approval; "approbative criticism"; "an affirmative nod"

1.  Confirmative; ratifying; as, an act affirmative of common law. [1913 Webster]

2.  That affirms; asserting that the fact is so; declaratory of what exists; answering “yes” to a question; -- opposed to negative; as, an affirmative answer; an affirmative vote. [1913 Webster]

3.  Positive; dogmatic. J. Taylor. [1913 Webster]
"Lysicles was a little by the affirmative air of Crito." [1913 Webster]

4.  Expressing the agreement of the two terms of a proposition. [1913 Webster]

5.  Positive; -- a term applied to quantities which are to be added, and opposed to negative, or such as are to be subtracted. [1913 Webster]

1.  That which affirms as opposed to that which denies; an affirmative proposition; that side of question which affirms or maintains the proposition stated; -- opposed to negative; as, there were forty votes in the affirmative, and ten in the negative. [1913 Webster]
"Whether there are such beings or not, 't is sufficient for my purpose that many have believed the affirmative." [1913 Webster]

2.  A word or phrase expressing affirmation or assent; as, yes, that is so, etc. [1913 Webster]

affirmative, adj. & n.
--adj.
1 affirming; asserting that a thing is so.
2 (of a vote) expressing approval.
--n.
1 an affirmative statement, reply, or word.
2 (prec. by the) a positive or affirming position.

Idiom:
affirmative action esp. US action favouring those who often suffer from discrimination. in the affirmative with affirmative effect; so as to accept or agree to a proposal; yes (the answer was in the affirmative).

Derivative:
affirmatively adv.

Etymology:
ME f. OF affirmatif -ive f. LL affirmativus (as AFFIRM)

N  assent, assentment, acquiescence, admission, nod, accord, concord, concordance, agreement, affirmance, affirmation, recognition, acknowledgment, avowal, confession of faith, unanimity, common consent, consensus, acclamation, chorus, vox populi, popular belief, current belief, current opinion, public opinion, concurrence, cooperation, ratification, confirmation, corroboration, approval, acceptance, visa, indorsement, consent, pressure to conform, herd instinct, peer pressure, assenting, of one accord, of one mind, of the same mind, at one with, agreed, acquiescent, content, willing, uncontradicted, unchallenged, unquestioned, uncontroverted, carried, agreed, nem, con, nemine contradicente unanimous, agreed on all hands, carried by acclamation, affirmative, yes, yea, ay, aye, true, good, well, very well, very true, well and good, granted, even so, just so, to be sure, 'thou hast said', you said it, you said a mouthful, truly, exactly, precisely, that's just it, indeed, certainly, you bet, certes, ex concesso, of course, unquestionably, assuredly, no doubt, doubtless, naturally, natch, be it so, so be it, so let it be, amen, willingly, affirmatively, in the affirmative, OK, all right, might as well, why not? with one consent, with one voice, with one accord, unanimously, una voce, by common consent, in chorus, to a man, nem, con, nemine contradicente, nemine dissentiente, without a dissentient voice, as one man, one and all, on all hands, avec plaisir, chi tace accousente, the public mind is the creation of the Master-Writ, you bet your sweet ass it is, what are we waiting for? whenever you're ready, anytime you're ready.

N  affirmance, affirmation, statement, allegation, assertion, predication, declaration, word, averment, confirmation, asseveration, adjuration, swearing, oath, affidavit, deposition, avouchment, assurance, protest, protestation, profession, acknowledgment, legal pledge, pronouncement, solemn averment, solemn avowal, solemn declaration, remark, observation, position, saying, dictum, sentence, ipse dixit, emphasis, weight, dogmatism, dogmatics, asserting, declaratory, predicatory, pronunciative, affirmative, soi-disant, positive, certain, express, explicit, absolute, emphatic, flat, broad, round, pointed, marked, distinct, decided, confident, trenchant, dogmatic, definitive, formal, solemn, categorical, peremptory, unretracted, predicable, affirmatively, in the affirmative, with emphasis, ex-cathedra, without fear of contradiction, as God is my witness, I must say, indeed, i' faith, let me tell you, why, give me leave to say, marry, you may be sure, I'd have you to know, upon my word, upon my honor, by my troth, egad, I assure you, by jingo, by Jove, by George, troth, seriously, sadly, in sadness, in sober sadness, in truth, in earnest, of a truth, truly, perdy, in all conscience, upon oath, be assured, yes, I'll warrant, I'll warrant you, I'll engage, I'll answer for it, I'll be bound, I'll venture to say, I'll take my oath, in fact, forsooth, joking apart, so help me God, not to mince the matter, quoth he, dixi.

affirmative action, affirmative pleading