un·clear [unclear] BrE [ˌʌnˈklɪə(r)] NAmE [ˌʌnˈklɪr] adjective 1. not clear or definite; difficult to understand or be sure about •His motives are unclear. •Our plans are unclear at the moment. •It is unclear whether there is any damage. •Your diagrams are unclear. 2.~ (about sth) | ~ (as to sth) not fully understanding sth Syn: ↑uncertain •I'm unclear about what you want me to do.