/ Dictionary / Index A aleatory: Meaning and Definition of Find definitions for: a•le•a•to•ry Pronunciation: (ā'lē-u-tôr"ē, -tōr"ē, al'ē-), [key] — adj. depending on a contingent event: an aleatory contract. of or pertaining to accidental causes; of luck or chance; unpredictable: an aleatory element. employing the element of chance in the choice of tones, rests, durations, rhythms, dynamics, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aleatory (Thesaurus) Aleardi aleatory poem Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language