insane B1 Topic:Describing Qualities US /ɪnˈseɪn/ See IPA manual Freq #1755 Meanings 1 adj Seriously mentally ill. The man was declared legally insane. 2 adj Extremely foolish or unreasonable. Driving in this storm would be insane. 3 adj Extremely good or impressive. That guitar solo was absolutely insane. Thesaurus Synonyms 2 adj · extremely foolish or... mad More apeshitbananasbarkingbarmybat-shitbatchybatcrapbatpoopbatsbatshitbattybonkers ↔ Opposites sanesober Word family Forms insanelyinsanerinsanest Derived forms insanelyinsanenessinsaneryinsaniacinsanifynoninsane Related forms becrazeinsanityravestupidwild Etymology AI details From Latin īnsānus (“unsound in mind; mad, insane”), from in- + sānus (“sound, sane”), equivalent to in- + sane. īnsānus Latin View etymology graph -> Topics Describing Qualities External links Cambridge Dictionary Wiktionary Google Images # insane **Type:** Word **Level:** B1 **Part of speech:** adj **IPA (US):** /ɪnˈseɪn/ **Frequency rank:** 1755 ## Meanings 1. Seriously mentally ill. 2. Extremely foolish or unreasonable. 3. Extremely good or impressive. ## Examples - The man was declared legally insane. - Driving in this storm would be insane. - That guitar solo was absolutely insane. ## Synonyms - apeshit - bananas - barking - barmy - bat-shit - batchy - batcrap - batpoop - bats - batshit - batty - bonkers ## Antonyms - sane - sober ## Derived Forms - insanely - insaneness - insanery - insaniac - insanify - noninsane ## Related Forms - becraze - insanity - rave - stupid - wild ## Roots and Affixes - Root: īnsānus ## Etymology From Latin īnsānus (“unsound in mind; mad, insane”), from in- + sānus (“sound, sane”), equivalent to in- + sane. ## AI Etymology Insane comes from Latin īnsānus (“unsound in mind; mad, insane”), from in- + sānus (“sound, sane”), equivalent to in- + sane. The analysis is mainly morphological: the modern adjectival form is built from the named base and affix. ## Topics - Describing Qualities markdown