say it: YUHK-ee
yucky is an adjective meaning "highly offensive; arousing aversion or disgust". It carries one recorded sense.
highly offensive; arousing aversion or disgust
“a disgusting smell”
“distasteful language”
“a loathsome disease”
“the idea of eating meat is repellent to me”
“revolting food”
“a wicked stench”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for yucky come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.