reactiveKK [riˋæktɪv] /ɹiˈæktɪv/發音形容詞1被動的、消極應對的、事後反應的常與 proactive 對比Our team is too reactive; we should plan ahead instead.我們團隊太被動了,應該事先規劃才對。2反應的、起反應的Her skin is highly reactive to changes in temperature.她的皮膚對溫度變化反應很大。3活性的、易起反應的化學This metal is extremely reactive when exposed to water.這種金屬一接觸到水就極易起反應。4反應性的醫學The patient was diagnosed with reactive depression after the accident.病人在事故後被診斷出反應性憂鬱症。