[adj] matching point for point; "coincident circles" [adj] occurring or operating at the same time; "a series of coincident events"
at the same time(p), coincident, coincidental, concurrent, congruent, cooccurring, simultaneous, synchronal, synchronic, synchronous
accordant, affirmative, agreeable, agreeing, answerable, at one, coequal, coexistent, coexisting, coextensive, coherent, coincident, coincidental, commensurate, compatible, concordant, concurring, conformable, congenial, congruent, congruous, consentaneou