insane

adjective/ɪnˈseɪn/

Frequency rank: #2,433 of 20,003 in the WORDED list (wordfreq data)

Meaning

Seriously mentally ill; extremely foolish or unreasonable.

Illustration for the English word “insane”

Example sentence

The decision he made was so reckless, it seemed completely insane.

Synonyms & related words

More words in ranks 2,401–2,500