verb (used with object), dis·be·lieved, dis·be·liev·ing.
- to have no belief in; refuse or reject belief in: to disbelieve reports of UFO sightings.
verb (used without object), dis·be·lieved, dis·be·liev·ing.
- to refuse or reject belief; have no belief.
verb
- (tr) to reject as false or lying; refuse to accept as true or truthful
- (intr usually foll by in) to have no faith (in)disbelieve in God
1640s; see dis- + believe. Related: Disbelieved; disbelieving; disbeliever.