insane
Translation
insane, mad, crazy, foolish
Examples
The man was declared legally insane.
The man was declared legally insane.
That's an insane idea!
That's an insane idea!
The traffic was insane this morning.
The traffic was insane this morning.
Grammar Patterns
to be insane (sb./sth.) is insane The man was declared legally insane.
an insane ((noun)) a foolish or outrageous (idea, plan, etc.) That's an insane idea!
Similar Words
Synonyms: crazy, mad, lunatic; Antonyms: sane, rational, sensible
Etymology
From the prefix 'in-' (not) + Latin 'sanus' (healthy, sane). Literally means 'not sane'.
Memory Tips
Think 'in-sane' -> 'not sane'. Picture someone doing something completely illogical.