1) Be angry 2) Be beside oneself 3) Be boiling mad 4) Be furious 5) Be het up 6) Be in a rage 7) Be in turmoil 8) Be irate 9) Be livid 10) Be noisy with activity 11) Be quietly furious 12) Be ready to explode 13) Be ready to rage 14) Be really mad 15) Be silently furious 16) Be steamed up 17) Be super-agitated 1) Boil 2) Boilwithrage 3) Fume 4) Pullulate 5) Rage 6) Roil 7) Stew 8) Teem 
• (n.) To decoct or prepare for food in hot liquid; to boil; as, to seethe flesh. • (v. i.) To be a state of ebullition or violent commotion; to be hot; to boil.
Seethe intransitive verb To be a state of ebullition or violent commotion; to be hot; to boil. 1 Sam. ii. 13. « A long Pointe, round which the Mississippi used to whirl, and seethe , and foam.» G. W. Cable. Seethe transitive verb [ imperfect Seethed ( Sod obsolete ); past participle Seethed , Sodden ; present participle & verbal noun Seething .] [ Middle English sethen , Anglo-Saxon ...
[v] - have violent emotions, such as anger or frustration 2. [v] - be in an agitated emotional state 3. [v] - foam as if boiling 4. [v] - boil vigorously
be in an agitated emotional state[Intelligent words] be in an agitated emotional state