不得体

• be unbecoming to
• unseemliness
• impropriety

例句

1. 他说出这种不策略的话是得不得体的。
   It was out of order for him to make such a tactless remark.
2. 不拘礼仪过分亲密或不拘礼仪的行为；不得体的行为
   An excessively familiar or informal act; an impropriety.
3. 不得体，无礼礼节或品味的缺乏；不适宜
   Lack of propriety or good taste; impropriety.