patchy 
/ˈpætʃi/ adjective
patch·i·er; patch·i·est /ˈpætʃi/ adjective [also more patchy; most patchy] 1 : having some parts that are good and some that are bad
▪ The lawn is kind of patchy this year. ▪ a patchy performance 2 : existing or seen in some areas but not others
▪ Patchy fog made driving difficult. 3 : not thorough or complete enough to be useful
▪ His knowledge of the language is patchy. ▪ She has only a patchy understanding of his condition.
▪ The lawn is kind of patchy this year. ▪ a patchy performance
▪ Patchy fog made driving difficult.
▪ His knowledge of the language is patchy. ▪ She has only a patchy understanding of his condition.
