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English definition of “yucky”

yucky

adjective uk (also yukky)   /ˈjʌk.i/ informal us  
disgusting or unpleasant: a yucky green colourSerious and unpleasantNot attractive to look atInformal words for badInformal words for badRubbish and wasteSerious and unpleasantNot of good quality
(Definition of yucky from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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