Probable Definition

Likely to occur or be; that can reasonably but not certainly be expected.
The probable winner.
Webster's New World
Likely but uncertain; plausible.
American Heritage
Reasonably so, as on the basis of evidence, but not proved.
The probable cause of a disease.
Webster's New World
Of or relating to opinions and actions in ethics and morals for whose lawfulness intrinsic reasons or extrinsic authority may be adduced.
American Heritage

Origin of Probable

  • From Old French probable, from Latin probābilis (“that may be proved, credible"), from probare (“to test, examine"); see probe, prove.

    From Wiktionary

  • Middle English plausible from Old French from Latin probābilis from probāre to prove prove

    From American Heritage Dictionary of the English Language, 5th Edition

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