insane
Translation
insane, crazy, mad, ridiculous
Examples
The patient was declared legally insane.
The patient was declared legally insane.
It's an insane idea to climb that mountain in a storm.
It's an insane idea to climb that mountain in a storm.
The amount of work he does is insane.
The amount of work he does is insane.
Grammar Patterns
to be insane to be mentally ill or extremely foolish He is completely insane.
an insane ((idea/plan/amount)) describing something as extreme or foolish It was an insane plan.
It is insane ((to-inf)) used to say an action is very foolish It is insane to drive so fast.
Similar Words
Synonyms: mad, crazy, deranged, ludicrous; Antonyms: sane, rational, sensible
Etymology
From Latin 'insanus'. 'in-' (not) + 'sanus' (sane, healthy). Literally 'not sane'.
Memory Tips
Break it down: 'in-' means 'not', and 'sane' means mentally healthy. So, 'not sane'.