Student Thesaurus

One entry found for insane.
Entry Word: insane
Function: adjective
Text: 1 having or showing a very abnormal or sick state of mind <only an insane person would jump off a skyscraper>
Synonyms balmy, bananas, batty, crackbrained, cracked, crazed, crazy, cuckoo, daffy, daft, demented, deranged, loco, loony (also looney), lunatic, mad, maniacal (also maniac), mental, moonstruck, nuts, nutty, screwy, unbalanced, unsound, wacky
Related Words dotty, off; aberrant, delusional, disordered; eccentric, odd, queer, strange; foolish, senseless, witless; irrational, unreasonable; berserk, delirious; depressed; distraught, frantic, frenzied, hysterical
Phrases around the bend, off one's rocker, out of one's head (or mind)
Near Antonyms clear, lucid, rational, reasonable; judicious, sensible, wise; healthy, normal
Antonyms balanced, sane, sound
2 conceived or made without regard for reason or reality <a completely insane plan to fly to the moon on a homemade rocket> -- see FANTASTIC 1
3 showing or marked by a lack of good sense or judgment <an insane urge to jump off a cliff> -- see FOOLISH 1