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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.

“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

And, a year after the 1979 Iranian revolution, gas did leap that unimaginable threshold to a dollar a gallon.

From Los Angeles Times • Mar. 18, 2026

"This past year has taken an unimaginable toll on Leqaa and our entire family," Abushaban told the BBC.

From BBC • Mar. 16, 2026

But for critics, there’s an obvious downside: the potential tracking of law-abiding citizens without a warrant on a scale once thought unimaginable.

From Los Angeles Times • Mar. 1, 2026

But one key difference is that a PET scan lets researchers look at various neurotransmitters, and cellular activity—a power unimaginable just a few generations ago.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel