Synonyms of psychopathic in English:

psychopathic


See definition of psychopathic

adjective

1‘could she have been attacked by some psychopathic killer?’

SYNONYMS

severely mentally ill, mentally ill, insane, mad, certifiable, deranged, demented, of unsound mind, out of one's mind, not in one's right mind, not together, crazed, maniac, maniacal, lunatic, unbalanced, unhinged, unstable, disturbed, distracted, stark mad, manic, frenzied, raving, distraught, frantic, hysterical, delirious, mad as a hatter, mad as a March hare

non compos mentis

British sectionable

informal crazy, mental, off one's head, out of one's head, off one's nut, nuts, nutty, nutty as a fruitcake, off one's rocker, not right in the head, not quite right in the head, round the bend, stark raving mad, stark staring mad, raving mad, bats, batty, bonkers, cuckoo, loopy, loony, bananas, loco, dippy, screwy, with a screw loose, schizoid, touched, gaga, up the pole, not all there, not right upstairs, away with the fairies, foaming at the mouth

British informal barmy, crackers, barking, barking mad, round the twist, off one's trolley, daft, as daft as a brush, not the full shilling

North American informal buggy, off the wall, nutsy, nutso, out of one's tree, meshuga, squirrelly, wacko

Canadian NZ Australian informal bushed

NZ informal porangi

technical psychotic, sociopathic, psychopathological