unbecoming russian

• неприли́чный

  indecent, obscene, dirty, rude

  improper, unseemly, unbecoming

• неприли́чно

  indecently, improperly, unbecomingly, offensively

  it is improper, it is indecent, it's not done

Examples

• Тома отстрани́ли от службы в а́рмии за поведе́ние, неподоба́ющее офице́ру.

  Tom was discharged from the army for conduct unbecoming an officer.

• Неуместно говори́ть о деньга́х.

  It's unbecoming to speak of money.

• Её поведе́ние не приста́ло да́ме.

  Her behavior is unbecoming of a lady.