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kooky

adjective
 
/ˈkuː.ki/ mainly US informal

Definition

(especially of a person) strange in their appearance or behaviour, especially in a way that is interesting: She's got this kooky, high-pitched voice.Strange, suspicious and unnatural kookiness
 
/-nəs/ noun [U] mainly US informal
(Definition of kooky adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of kooky