Ordinary Or"di*na*ry, a. [L. ordinarius, fr. ordo, ordinis, order: cf. F. ordinaire. See Order.] 1. According to established order; methodical; settled; regular. ``The ordinary forms of law.' --Addison. 2. Common; customary; usual. --Shak. Method is not less reguisite in ordinary conversation that in writing. --Addison. 3. Of common rank, quality, or ability; not distinguished by superior excellence or beauty; hence, not distinguished in any way; commonplace; inferior; of little merit; as, men of ordinary judgment; an ordinary book. An ordinary lad would have acquired little or no useful knowledge in such a way. --Macaulay. Ordinary seaman (Naut.), one not expert or fully skilled, and hence ranking below an able seaman. Syn: Normal; common; usual; customary. Usage: See Normal. -- Ordinary, Common. A thing is common in which many persons share or partake; as, a common practice. A thing is ordinary when it is apt to come round in the regular common order or succession of events.