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Synonyms

unimaginable

British  
/ ˌʌnɪˈmædʒɪnəbəl /

adjective

  1. difficult or impossible to believe; inconceivable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unimaginably adverb

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Such communication was once unimaginable at the highest levels of power.

From Barron's • Apr. 15, 2026

“This is an unimaginable tragedy for a family that has already endured so much,” said Senior Deputy Dist.

From Los Angeles Times • Apr. 7, 2026

She said historical forced adoption caused "unimaginable trauma for multiple generations of women and profound, often devastating impacts for their children".

From BBC • Mar. 27, 2026

“With Iran we now see the irony that despite unimaginable energy independence, the U.S. is still at the whim of a physical chokepoint,” he said.

From The Wall Street Journal • Mar. 22, 2026

Her loss was unimaginable, and suddenly she was very human to me.

From "Summer of the Mariposas" by Guadalupe García McCall