coexistent

1 existing or occurring at the same period of time the theory that there were two coexistent hominids inhabiting that region Synonyms coetaneous, coeval, contemporary, coexisting, coextensive, coincident, coincidental, concurrent, contemporaneous, coterminous, simultaneous, synchronic, synchronousRelated Words accompanying, attendant, attending, concomitant, incidentAntonyms asynchronous, noncontemporary, nonsimultaneous, nonsynchronous

2 present at the same time and place a disorder that is often coexistent with a deficiency of certain vitamins Synonyms accompanying, attendant, attending, coincident, coexisting, coincidental, concomitant, concurrentRelated Words contemporaneous, contemporary, simultaneous, synchronous; associated, collateral, connected, linked, related; consequent, resultant, resulting; ensuing, following, subsequent; accidental, casual, chance, fluky (also flukey), fortuitous, freak, incident, incidentalNear Antonyms unassociated, unconnected, unrelated