'Manic' definitions:

Definition of 'manic'

From: WordNet
adjective
Affected with or marked by frenzy or mania uncontrolled by reason; "a frenzied attack"; "a frenzied mob"; "the prosecutor's frenzied denunciation of the accused"- H.W.Carter; "outbursts of drunken violence and manic activity and creativity" [syn: frenzied, manic]

Definition of 'Manic'

From: GCIDE
  • Manic \Man"ic\, a. [Gr. maniko`s mad, frenzied.] (Med.) Of or pert. to, or characterized by, mania, or excitement; frenzied; as, with manic energy. [Webster 1913 Suppl.]

Synonyms of 'manic'

From: Moby Thesaurus