Ordinary  —adj. 1 normal, usual. 2 commonplace, unexceptional. —n. (pl. -ies) rc ch. 1 parts of a service that do not vary from day to day. 2 rule or book laying down the order of service.  in the ordinary way in normal circumstances. Out of the ordinary unusual.  ordinarily adv. Ordinariness n. [latin: related to *order]