英语词源字典 - 在线词源网站

responsive (adj.)[responsive 词源字典]: early 15c., "making answer," from Middle French responsif and directly from Late Latin responsivus "answering," from Latin respons-, past participle stem of respondere (see respond). Meaning "responding to influence or action" is from 1762. Related: Responsively; responsiveness.[responsive etymology, responsive origin, 英语词源]
unresponsive (adj.): 1660s, "unable to reply," from un- (1) "not" + responsive (adj.). Meaning "not responding" is from 1775. Related: Unresponsiveness.