Synset

afflicted with or characteristic of mental derangement
<adj.all> freq. cnt.: 11 freq. cnt.: 11

sample sentences

"was declared insane"
"insane laughter"

lexical pointers

antonym

derivationally related form

insaneness insanity

semantic pointers

also see

irrational unreasonable

similar to

balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky crazy, mad, sick, brainsick, demented, disturbed, unbalanced, unhinged certifiable, certified idiotic, crackbrained deranged, crazed, half-crazed fey, touched hebephrenic lunatic, moonstruck maniacal, maniac manic-depressive maniclike mentally ill, unsound, unstable non compos mentis, of unsound mind paranoid psychopathic, psychopathologic, psychopathological psychotic raving mad, wild schizophrenic screw-loose, screwy