Adjective sane has 2 senses
- sane - mentally healthy; free from mental disorder; "appears to be completely sane"
Antonyms: insane, amuck, amok, berserk, demoniac, demoniacal, possessed, 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, brainsick, crazy, demented, distracted, disturbed, mad, sick, unbalanced, unhinged, certifiable, certified, crackbrained, idiotic, crazed, deranged, half-crazed, fey, touched, hebephrenic, lunatic, moonstruck, maniacal, maniac, manic-depressive, maniclike, non compos mentis, of unsound mind, paranoid, psychopathic, psychopathologic, psychopathological, psychotic, raving, raving mad, wild, schizophrenic, screw-loose, screwy, mentally ill, unsound, unstable
- reasonable, sane - marked by sound judgment; "sane nuclear policy"
Antonym: irrational (indirect, via rational)