Insane - Meaning, Definition & English Examples
Insane means extremely foolish or irrational, often describing behavior or ideas that are wildly unreasonable. It can also refer to a severe mental illness causing a loss of contact with reality.
Definition:
Mentally ill or extremely foolish; lacking reason or sound judgment.
Synonyms:
crazy, mad, deranged, irrational
Part of Speech:
adjective
Antonyms:
sane, rational, reasonable
Common Collocations:
insane asylum, insane idea, insane laughter, insane amount
Derivatives:
insanely, insanity
Usage Tips:
Use "insane" to describe extreme irrationality or mental illness; avoid casual use to respect mental health concerns.
Common Phrases:
drive someone insane, insane in the membrane, work like crazy (colloquial)
Etymology:
From Latin "insanus," meaning "unsound in mind," combining "in-" (not) and "sanus" (healthy).
Examples:
- 1. The idea sounded insane to everyone at the meeting.
- 2. She laughed with an insane intensity that worried her friends.
- 3. He was declared legally insane after the trial.
- 4. The workload was insane last week—I barely slept!