Definitions

1. adjective

feeling or expressing anger or annoyance, to a greater degree

“He’s been getting angrier by the minute as he listened to the news.”

2. comparative of angry

comparing two things, the one mentioned is angrier than the other

“She’s angrier than her brother when he saw his favorite team lose.”

3. noun

a person or thing that causes or expresses anger

“The noise from the neighbor’s party was the angriest thing I’ve ever heard.”