ex·pul·sive \-lsiv, -sēv also -lts- or -səv\adjective Etymology: Middle English expulsif, from Middle French & Medieval Latin; Middle French expulsif, from Medieval Latin expulsivus, from Latin expulsus + -ivus -ive : having the power of expelling : serving to expel < the expulsive power of an exhausting emotional experience — Hunter Mead >