insane

/ɪnsˈe‍ɪn/

/ˌɪnˈseɪn/

insane

extremely unreasonable or stupid, particularly in a manner that is likely to be dangerous

afflicted with or characteristic of mental derangement

antonyms : sane

Examples

1. To go crazy/mad/nuts/insane.

2. He was declared insane and ordered to be detained in a mental hospital at Her Majesty's pleasure.

3. Carrots again, the color variety is insane.

4. The highlight, the contour is insane.