seething

(verb) be noisy with activity. Synonyms: hum, buzz, seethe. Example: "This office is buzzing with activity."

(verb) be in an agitated emotional state. Synonyms: seethe, boil. Example: "The customer was seething with anger."

(verb) foam as if boiling. Synonyms: seethe. Example: "A seething liquid."

(verb) boil vigorously. Synonyms: seethe, roll. Examples: "The liquid was seething." "The water rolled."

(adj) in constant agitation. Examples: "A seething flag-waving crowd filled the streets." "A seething mass of maggots." "Lovers and madmen have such seething brains"- shakespeare."