in‧for‧mal W3 / ɪnfɔm ə l $ -ɔr- / 形容词
1 relaxed and friendly without being restricted by rules of correct behaviour 反义词 formal :
The atmosphere at work is fairly informal.
The two groups met for informal talks.
2 an informal style of writing or speaking is suitable for ordinary conversations or letters to friends 反义词 formal
3 informal clothes are suitable for wearing at home or in ordinary situations 同义词 casual 反义词 formal
— informally 副词
— informality / ɪnfɔmæləti, ɪnfɔmælɪti $ -fɔr- / 名词 [不可数名词]