Unthinkable
"Unthinkable" in French
impensable
(inconceivable or unimaginable; extremely improbable in a way that goes against common sense)
inconcevable
(inconceivable or unimaginable; extremely improbable in a way that goes against common sense)
incroyable
(incapable of being believed; incredible)
inimaginable
(inconceivable or unimaginable; extremely improbable in a way that goes against common sense)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.