Dictionary.com
Thesaurus.com
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

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.

And as hurlers continue to reach previously unimaginable velocities—the average four-seam fastball this year is traveling 94.6 mph, up from 92.2 in 2010—it’s clear the problem is only getting worse.

From The Wall Street Journal • May 26, 2026

Cater said the forum had "caused unimaginable pain and suffering for bereaved families across the UK and beyond, and no punishment can undo that harm".

From BBC • May 13, 2026

"Her child has suffered the unimaginable loss of their mummy in this tragedy," Shaw's family added.

From BBC • May 7, 2026

The Lord has been our strength in this unimaginable moment.

From Los Angeles Times • Apr. 29, 2026

Meanwhile, with every flight, the Pe-2 aircrews risked their lives with a determination that’s unimaginable for most of us.

From "A Thousand Sisters" by Elizabeth Wein

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "unimaginable" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com