improperim•prop•er /ɪm'prɒpəʳ/

adj

1. 不成体统的；不合礼仪的

• Short trousers are improper at a dance. 舞会上穿短裤不成体统。

2. 错误的；不正确的

• the improper use of a singular verb with a plural subject 单数动词与复数主语的错误搭配

3. 不合适的

• improper to the occasion 不合时宜

–improperly adv