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

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

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

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

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

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

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