insane
in·sane
adjective
1.
afflicted with or characteristic of mental derangement
- “was declared insane”
- “insane laughter”
2.
very foolish
- “harebrained ideas”
- “took insane risks behind the wheel”
- “a completely mad scheme to build a bridge between two mountains”
Origin
From Latin īnsānus (“unsound in mind; mad, insane”), from in- + sānus (“sound, sane”), equivalent to in- + sane.
Phrases
- a few clowns short of a circus
- a half bubble off plumb
- a kangaroo loose in the top paddock
- drive someone insane
- general paralysis of the insane
- general paresis of the insane
- insane asylum
- insane in the membrane
Related words
Word family
See also
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.