dependent for existence, occurrence, character, etc., on something not yet certain; conditional (often fol. by on or upon )

Our plans are contingent on the weather.

liable to happen or not; uncertain; possible

They had to plan for contingent expenses.

happening by chance or without known cause; fortuitous; accidental

contingent occurrences.

Logic . (of a proposition) neither logically necessary nor logically impossible, so that its truth or falsity can be established only by sensory observation.

a quota of troops furnished.

any one of the representative groups composing an assemblage

the New York contingent at a national convention.

the proportion that falls to one as a share to be contributed or furnished.

something contingent; contingency.

adjective

certain , definite , real , sure , truthful , unconditional

adjective

accidental , casual , chance , controlled by , dependent , fluky , fortuitous , haphazard , incidental , likely , odd , probable , probably , random , subject to , unanticipated , uncertain , unexpected , unforeseeable , unforeseen , unpredictable , possible , conditional , conditioned , relative , reliant , subject , inadvertent

noun

batch , body , bunch , deputation , detachment , disciples , mission , quota , sect , section , set , accidental , casual , chance , conditional , delegation , dependent , empirical , fortuitous , likely , possible , provisional , unanticipated , unpredictable