/ Dictionary / Index P probable: Meaning and Definition of Find definitions for: prob•a•ble Pronunciation: (prob'u-bul), [key] — adj. likely to occur or prove true: He foresaw a probable business loss. He is the probable writer of the article. having more evidence for than against, or evidence that inclines the mind to belief but leaves some room for doubt. affording ground for belief. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: probable (Thesaurus) probability theory probable cause Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language