affirmative

nouns

a reply of affirmation
"he answered in the affirmative"
affirmative
antonym
negative
is a type of (narrower)
a statement asserting the existence or the truth of something
affirmation, avouchment, avowal

adjectives

affirming or giving assent
"an affirmative decision"; "affirmative votes"
affirmative, affirmatory
is derived from
affirm
antonym
negative
expecting the best
"an affirmative outlook"
affirmative, optimistic
is derived from
affirmativeness
expressing or manifesting praise or approval
"approbative criticism"; "an affirmative nod"
affirmative, approbative, approbatory, approving, plausive