Define unimaginable. unimaginable synonyms, unimaginable pronunciation, unimaginable translation, English dictionary definition of unimaginable. adj. Not conceivable in the imagination. …

Something that is unimaginable is difficult to imagine because it is so bad, good, big, etc…. Learn more.

Dec 14, 2025 · Adjective unimaginable (comparative more unimaginable, superlative most unimaginable) Unable to be imagined; inconceivable or mind-boggling; beyond belief.

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The meaning of UNIMAGINABLE is not imaginable or comprehensible. How to use unimaginable in a sentence.

Definition of unimaginable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

UNIMAGINABLE definition: difficult or impossible to believe; inconceivable See examples of unimaginable used in a sentence.

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