Part of speech:
Not conceivable in the imagination.
The definition of improbable is something unlikely to happen or unlikely to be true.
The definition of absurd is something that is so untrue or impossible it is funny.
That can be conceived, understood, imagined, or believed
Employed or used for a special service, function, or occasion:
(Archaic) Not capable of being managed or dealt with; intractable
The definition of impractical is not useful, or is not efficient.
Not to be believed
Possible to consider or be considered; conceivable:
Not likely; improbable.
The definition of outlandish is something bizarre or ridiculously out-of-the-ordinary.
Inexpressibly bad or objectionable:
Capable of eliciting belief or trust.
Capable of being believed; believable or plausible:
Capable of happening, existing, or being true without contradicting proven facts, laws, or circumstances:
Find another word for unthinkable. In this page you can discover 29 synonyms, antonyms, idiomatic expressions, and related words for unthinkable, like: unbelievable, unimaginable, incredible, improbable, absurd, illogical, contrary to reason, conceivable, out-of-the-question, extraordinary and impracticable.