Definition of defy belief
- His story about UFOs defies belief.
: to challenge to combat
: to challenge to do something considered impossible : dare
: to confront with assured power of resistance : disregard
: challenge, defiance
: a state or habit of mind in which trust or confidence is placed in some person or thing
: something that is accepted, considered to be true, or held as an opinion : something believed
: conviction of the truth of some statement or the reality of some being or phenomenon especially when based on examination of evidence
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