1. serving or tending to connect • Ant: disjunctive • Similar to: copulative, connective • Derivationally related forms: conjoin 2. involving the joint activity of two or more - concerted action - the conjunct influence of fire and strong wind - the conjunctive focus of political opposition - a cooperative effort - a united effort - joint military activities • Syn: concerted, conjunct, cooperative • Similar to: joint • Derivationally related forms: cooperate (for: cooperative)