wacko
UK /ˈwæ.kəʊ/ · US /ˈwæ.koʊ/ adjective, noun, interjection
Forms wackos wackoes whacko
- adjective (slang, informal, somewhat derogatory) Amusingly eccentric or irrational.
- noun (slang, somewhat derogatory) An amusingly eccentric or irrational person.
- interjection (UK, dated) Hurrah!
Synonyms
kooky oddballish pixilated aberrant abnormal anomalous balmy barmy bizarre crackpot cranky eccentric eccentrical erratic excentrical extraordinary far-out freakish heteroclite idiocentric nutter whacko
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “wacko”, CC BY-SA 4.0. Details