unthinkable
[ uhn-thing-kuh-buh l ]
/ ʌnˈθɪŋ kə bəl /
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.
Origin of unthinkable
OTHER WORDS FROM unthinkable
un·think·a·bil·i·ty, un·think·a·ble·ness, noun un·think·a·bly, adverbWords nearby unthinkable
untether,
untethered,
unthankful,
unthatch,
unthink,
unthinkable,
unthinking,
unthought,
unthought-of,
unthread,
unthrone
Example sentences from the Web for unthinkable
British Dictionary definitions for unthinkable
unthinkable
/ (ʌnˈθɪŋkəbəl) /
adjective
not to be contemplated; out of the question
unimaginable; inconceivable
unreasonable; improbable