Definition of "factive" in English

adjective

1. (grammar, of a verb) Licensing only those content clauses that represent claims that are (known or believed with certainty to be) true.

2. (epistemology, of a knowing agent) Which does not know any falsities: which knows only truths.

noun

1. (grammar) A factive verb.

adjective

1. (obsolete) Making; creative.