厲害

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. • stern strict harsh shrewd tough

     of a person

3. • fierce

     of an animal

4. • striking

     of a resemblance

5. • (of liquor or chili pepper) strong
6. • virulent

     of bacteria

Character by character

• 厲(lì)strict
• 害(hai)do harm to