ETYM Pref. in- not + coherent: cf. French incohérent.
1. Unable to express oneself clearly or fluently; SYN. tongue-tied.
2. Unable to think or express one's thoughts in a clear or orderly manner.
3. Without logical or meaningful connection.
Koji nema veze, koji nije u vezi, čiji delovi nisu povezani, labav; zbunjen, smeten, nedosledan.
Konfuzan.