out-of-course adjective 1out of course prepositional phrase 1 adjective1 •Not occurring in the normal course of things.The inspector estimated that the whole "Condor" schedule is at least 45 min. easier than the diesels' potential, but of course some margin must be left for out-of-course delays. — 1960 out of course prepositional phrase1 •out of order; not in harmony or agreement
