From Longman Dictionary of Contemporary Englishickyick‧y /ˈɪki/ adjective spoken UNPLEASANTvery unpleasant, especially to look at, taste, or feel SYN yucky There was some icky black stuff between the tiles.
Examples from the Corpus
icky• What's this icky black stuff on the tree?• The grandedame gestures of the late fifties had gone, the overblown and icky sentiment had gone.Origin icky (1900-2000) Perhaps from sticky 