—adj. 1. arranged or disposed in a neat, tidy manner or in a regular sequence: an orderly desk. 2. observant of or governed by system or method, as persons or the mind.
3. characterized by or observant of law, rule, or discipline; well-behaved; law-abiding: an orderly assemblage of citizens. 4. pertaining to or charged with the communication or execution of orders.
—adv. 1. methodically; regularly.
2. according to established order or rule.
—n. 1. Mil.an enlisted soldier assigned to perform various chores for a commanding officer or group of officers.
2. a hospital attendant having general, nonmedical duties.