adj
improbable
ihm-PRO-buhbl
adj
1
Unlikely to be true or to happen.
"It seems improbable that they'll finish the project by Friday."
"The team pulled off an improbable comeback in the final minutes."
How to Use Improbable
Learner’s notesIn plain EnglishUnlikely — not expected to be true or to happen.
Common pairings
highly improbable
improbable victory
seems improbable
Word Forms
more improbable comparative, most improbable superlative
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Etymology
From Latin improbabilis, from im- ("not") + probabilis ("probable").