1. (a.) Occupying the same place or time; contemporaneous; concurrent; as, the flood was coincident with the storm\; -- followed by with.

2. (n.) One of two or more coincident events; a coincidence.

accessory accompanying accordant affirmative agreeable agreeing answerable associate associated at one at one with attendant attending coacting coactive coadunate coequal coexistent coexisting coextensive coherent coincidental coinciding collaborative collateral collective collusive combined combining commensurate compact compatible comprehensive concerted concomitant concordant concurrent concurring conformable congenial congruent congruous conjoint conjugate conjunct consentaneous consentient consilient consistent consonant conspiratorial cooperant cooperating cooperative coordinate corporate correlative correspondent corresponding coterminous coupled coworking en rapport equal equivalent fellow harmonious in accord in agreement in rapport in sync in synchronization inaccordance inclusive inharmony joined joint like-minded meeting mutual of a piece of like mind of one mind on all fours paired parallel parasitic positive proportionate reconcilable saprophytic self-consistent simultaneous symbiotic synchronized synchronous synergetic synergic synergistic synonymous twin unanimous uniform unisonant unisonous united uniting