aleatory

Left to chance

Aleatory means dependent on chance or randomness.

In law, an aleatory contract involves uncertain outcomes—insurance policies and gambling agreements are aleatory because payouts depend on unpredictable events.

In music and art, aleatory works incorporate random elements: The composer left certain passages to aleatory choices by the performers.

The word appears mostly in technical and academic contexts.

chance

randomness

Lack of predictable pattern

fortuity · indeterminacy · stochastic · arbitrary · haphazard · fortuitous · incidental · accidental · unpredictable · uncertain

gambling

dice

Marked cubes for chance

betting · stakes · casino · poker · blackjack · craps · baccarat · slot-machine · jackpot · odds

music

John Cage

Prepared piano inventor

avant-garde · Feldman · I Ching · score

legal

contract

Enforceable written agreement

insurance · liability · actuarial · indemnity · coverage · premiums · underwriting · policyholder · contingency · exposure

Opposites
determination/chance

aleatorydeterministic

Completely caused by prior conditions

predetermined · predictable · certain · inevitable · fixed

intentionality

aleatorydeliberate

Consciously chosen, not accidental

intentional · designed · planned · purposeful · calculated

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