diffident发音形容词1缺乏自信的、畏缩的、没把握的正式He was too diffident to ask for a raise.他太没自信,不敢开口要求加薪。2羞怯的、拘谨的、腼腆的She gave a diffident smile and looked at the floor.她腼腆地笑了一下,低头看著地板。3谦抑的、含蓄的正式The author remains diffident about his own achievements.这位作家谈到自己的成就时始终十分谦抑。用这个字练口说→