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unthinkable
[ uhn-thing-kuh-buhl ]
/ ʌnˈθɪŋ kə bəl /
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This shows grade level based on the word's complexity.
adjective
inconceivable; unimaginable: the unthinkable size of the universe.
not to be considered; out of the question: Such a suggestion is unthinkable.
noun
something that cannot be conceived or imagined, as something too unusual, vague, or disagreeable: Today's unthinkables are tomorrow's realities.
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OTHER WORDS FROM unthinkable
un·think·a·bil·i·ty, un·think·a·ble·ness, nounun·think·a·bly, adverbWords nearby unthinkable
untether, untethered, unthankful, unthatch, unthink, unthinkable, unthinking, unthought, unthought-of, unthread, unthrone
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use unthinkable in a sentence
British Dictionary definitions for unthinkable
unthinkable
/ (ʌnˈθɪŋkəbəl) /
adjective
not to be contemplated; out of the question
unimaginable; inconceivable
unreasonable; improbable
Derived forms of unthinkable
unthinkability or unthinkableness, noununthinkably, adverbCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
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