insane Definition
- 1mentally ill; exhibiting serious and debilitating mental disorders
- 2extremely foolish or irrational; absurd or ridiculous
Using insane: Examples
Take a moment to familiarize yourself with how "insane" can be used in various situations through the following examples!
Example
He was declared legally insane and sent to a mental institution.
Example
The idea that the earth is flat is insane.
Example
She has an insane amount of energy.
Example
The roller coaster ride was insane!
insane Synonyms and Antonyms
Idioms Using insane
Example
After spending years alone in the wilderness, he was as mad as a hatter.
Example
The stress of the job was so great that he eventually went insane.
like a madman/woman
to do something with great intensity or urgency
Example
He was running like a madman to catch the train.
Phrases with insane
Example
The constant noise from the construction site is driving me insane.
Example
He spent several months in an insane asylum after his breakdown.
Example
His insane laughter echoed through the empty halls of the abandoned building.
Origins of insane
from Latin 'insanus', meaning 'unhealthy'
Summary: insane in Brief
The term 'insane' [ɪnˈseɪn] refers to a state of serious mental illness or extreme irrationality. It can describe a person or an idea, as in 'The idea that the earth is flat is insane.' 'Insane' is used in phrases like 'drive someone insane,' and idioms like 'be as mad as a hatter,' which means to be completely crazy. 'Insane' has formal synonyms like 'mentally ill' and 'psychotic,' and informal synonyms like 'crazy' and 'nuts.'
