WordReference Random House Unabridged Dictionary of American English © 2026
fac•tive
(fak′tiv),USA pronunciation [Ling.]
adj.
n.
fac•tiv′i•ty, n.
adj.
- Linguistics(of a verb, adjective, or noun phrase) presupposing the truth of an embedded sentence that serves as complement, as realize in I didn't realize that he had left, which presupposes that it is true that he had left.
n.
- Linguisticsa factive expression.
- fact + -ive 1605–15