Unimaginable Grief: The Boston Community Mourns As Lives Are Forever Changed

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.

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

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

If you describe something as unimaginable, you are emphasizing that it is difficult to imagine or understand properly, because it is not part of people's normal experience.

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