loutish       
adjective  informal uk/ˈlaʊ.tɪʃ/ us/ˈlaʊ.t̬ɪʃ/
 粗鲁的
behaving in a very rude, offensive, and sometimes violent way
  loutish behaviour 粗鲁的行为 
 She complained to me about a couple of loutish students. 她向我抱怨几个行为粗鲁的学生。 
 See: lout
 - More examples
 - I was angry with myself for appearing loutish.
 - The black-and-white film focuses on a group of loutish friends in their early 20s talking at an all-night diner.
 - A schism opened between faculty who supported the athletes and those who accused them of getting away with loutish behavior.