Synonyms of maniacal

maniacal

adjective

mə-ˈnī-ə-kəl 

variants also maniac

as in psychotic

unable to think in a clear or sensible way

The show's maniacal villain has no method to his madness.

Synonyms & Similar Words

• psychotic
• insane
• mad
• crazy
• mental
• crazed
• demented
• psycho
• nuts
• deranged
• unhinged
• disturbed
• unbalanced
• irrational
• eccentric
• foolish
• nutty
• loco
• strange
• around the bend
• certifiable
• batty
• daft
• off
• cracked
• obsessed
• bonkers
• depressed
• out to lunch
• haywire
• fey
• non compos mentis
• unsound
• brainsick
• queer
• frantic
• ballistic
• distracted
• distraught
• unreasonable
• delirious
• hysterical
• loopy
• bats
• delusionary
• delusional
• crackers
• oddball
• nuclear
• odd
• off one's rocker
• aberrant
• disordered
• off one's gourd
• dotty
• off one's head
• wud
• out of one's head
• witless
• monomaniacal
• berserk
• frenzied
• pixilated
• touched
• raving
• senseless
• potty
• monomaniac
• ape
• teched
• fixated
• wigged-out
• amok
• bananas

Antonyms & Near Antonyms

• sound
• sane
• reasonable
• rational
• balanced
• clear
• normal
• lucid
• wise
• sensible
• judicious
• uncrazy
• compos mentis
• healthy
• well-adjusted
• unneurotic

Example Sentences

Recent Examples of maniacal

The president as a maniacal urban planner is a white-knuckle ride, with Washington — and Washingtonians — just holding on for dear life. — Maureen Dowd, Mercury News, 23 June 2026

One of Anthropic’s great strengths compared to its archrival OpenAI is its maniacal focus. — Rob Toews, Forbes.com, 22 June 2026

Gilmore said before unleashing a maniacal laugh. — Gary Phillips, New York Daily News, 11 June 2026

Bardem is captivating and formidable, grinning with maniacal glee at his every act of depravity and the fear and anguish of his victims. — Kelly Lawler, USA Today, 4 June 2026