Synonyms and Antonyms of maniacal
- The movie's villain was just a clichéd axe-wielding nutcase with a maniacal laugh.
balmy, bats, batty, bedlam, bonkers, brainsick, certifiable, crackbrained, cracked, crackpot, crazed, crazy, cuckoo, daffy, daft, demented, deranged, gaga, insane, kooky (also kookie), loco [slang], loony (also looney), lunatic, mad, mental, non compos mentis, nuts, nutty, psychotic, screwy, unbalanced, unhinged, unsound, wacky (also whacky)
around the bend, off one's gourd, off one's head, off one's rocker, out of one's head (or mind)
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