insane

CEFRC1

/ɪnˈseɪn/

adjective

Türkçe translations

Translating…

In plain English

  1. 01

    adjective

    Seriously mentally ill or extremely unreasonable.

  2. 02

    adjective

    Extra detail

    Causing insanity or madness.

Examples

  • Are you insane for you to stay up all night playing cards?

  • Hamlet acts as if he were insane.

At a glance

Sits at C1 on the CEFR scale

Senses
5
Parts of speech
1
Citations
5
Synonyms
5

Deep Dive

adjective

Extra meanings

  1. Used by or relating to insane people.

  2. Exhibiting unsoundness or disorder of mind; not sane; utterly mad.

  3. Characterized by excess or the utmost folly; ridiculous; impractical.

More examples

In context

  • She was released on the grounds that she was insane.

  • an insane asylum

  • an insane hospital

Synonyms

Antonyms

Quick test

Two questions on this entry. Nothing is scored.

Question 1 · Quick check

The judge declared the defendant blank and unfit for trial.

Practise this properly in the app, where the word comes back before you forget it.

Nearby

Origin

adjective

From Latin īnsānus (“unsound in mind; mad, insane”), from in- + sānus (“sound, sane”), equivalent to in- + sane.