One entry found for insane.

Main Entry: in·sane
Pronunciation: ()in-sn
Function: adjective
1 : having or showing a very abnormal and very sick state of mind : not sane <an insane person> <an insane look>
2 : used by or for insane persons <an insane ward in a hospital>
3 : extremely foolish or unreasonable <an insane attempt>
- in·sane·ly adverb