厉害

lì hailihai

1. (used to describe sb or sth that makes a very strong impression, whether favorable or unfavorable) terrible; intense; severe; devastating; amazing; awesome; outstanding
2. (of a person) stern; strict; harsh; shrewd; tough
3. (of an animal) fierce
4. (of a resemblance) striking
5. (of liquor or chili pepper) strong
6. (of bacteria) virulent

Study it in Yanamino