As an adjective factive
is (linguistics|of a verb) licensing only those content clauses that represent claims assumed to be true.
As a noun factivity is
the state or condition of being factive.
Other Comparisons: What's the difference?
(linguistics, of a verb) Licensing only those content clauses that represent claims assumed to be true.
(epistemology, of a knowing agent) which does not know any falsities: which knows only truths.
- You can't say he "discovered" that the moon is made of green cheese, because "discover" is a factive verb and the moon isn't made of green cheese.
The state or condition of being factive.