Characterized by affirmation or assertion; assertive; positive in form; not negative: as, an affirmative proposition; affirmative principles.Hence Positive in manner; confident; dogmatic.Giving affirmation or assent; confirmatory; ratifying; concurring; agreeing: as, an affirmative decree or judgment by an appellate court; an affirmative answer to a request.n. That which affirms or asserts; a positive proposition or averment: as, two negatives make an affirmative.n. That which gives affirmation or assent; the agreeing or concurring part or side: with the definite article: as, to support the affirmative; to vote in the affirmative (that is, in favor of the affirmative side), as in a legislative body.n. In judicial proceedings, the side which, whether in itself an affirmation or a negation, requires first to be supported by proof, presumption in the absence of proof being against it; the side which has the burden of proof.n. Nautical, the signal-flag or pendant by which assent is expressed.