"unbelievable" | Definition and Related Words

Adjective

Beyond belief or understanding (synset 300648515)
"at incredible speed"; "the book's plot is simply incredible"
also:
- flimsy, unconvincing - not convincing
- incredulous - not disposed or willing to believe; unbelieving
- implausible - having a quality that provokes disbelief
- unthinkable - incapable of being conceived or considered
tells us about: believability, credibility, credibleness - the quality of being believable or trustworthy
similar to:
- astounding, dumbfounding, dumfounding - bewildering or striking dumb with wonder
- fabulous - barely credible
- improbable, marvellous, marvelous, tall - too improbable to admit of belief
- undreamed, undreamed of, undreamt, undreamt of, unimagined - not imagined even in a dream
same as: incredible
Having a probability too low to inspire belief (synset 301805119)
similar to: implausible - having a quality that provokes disbelief

same as: improbable, unconvincing, unlikely