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unthought-of

British  
/ ˌʌnˈθɔːtɒv /

adjective

  1. unimaginable; 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

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.

For Kentridge, attachment to a great idea can lead to entrapment, closing your mind to other, unthought-of fertile ideas.

From Los Angeles Times

Putin's 27-day long incursion into Ukraine has forced more than 3.5 million to flee, brought the unprecedented isolation of Russia's economy, and raised fears of wider conflict in the West unthought-of for decades.

From Reuters

Which means you can keep hiking through winter and opens up all kinds of heretofore unthought-of possibilities.

From Seattle Times

They seemed to enjoy their unthought-of role in the art world, and to be happy to stay there.

From The New Yorker

Its origins have to do with Greek drama, but the reference here is to man playing god, to the unthought-of complications involved in creating sentient life.

From Los Angeles Times