Synonyms of manic in English:

manic


See definition of manic

adjective

1‘a manic grin’

SYNONYMS
mad, insane, deranged, demented, maniacal, lunatic, crazed, wild, demonic, demoniacal, hysterical, raving, neurotic, unhinged, unbalanced
British sectionable
informal crazy
ANTONYMS

sane

2‘scenes of manic activity’

SYNONYMS
frenzied, feverish, frenetic, hectic, intense
informal hyper, mad
British informal swivel-eyed
ANTONYMS

calm