[im-prob-uh-bil-i-tee, im-prob-]
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Origin of improbability

First recorded in 1590–1600; improbable + -ity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for improbability

doubtfulness, uncertainty, impossibility, rarity, implausibility

Examples from the Web for improbability

Contemporary Examples of improbability

Historical Examples of improbability

Word Origin and History for improbability

1590s, "fact or quality of being improbably;" see improbable + -ity. Meaning "an instance of something improbable" is from 1610s.

Online Etymology Dictionary, © 2010 Douglas Harper