ODOURLESS Meaning of ODOURLESS in English o ‧ dour ‧ less BrE AmE British English , odorless American English /ˈəʊdələs $ ˈoʊdər-/ adjective having no smell:a colorless, odorless liquid Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012