adjective: 1. guided, regulated, or managed: a carefully directed program. 2. subject to direction, guidance, regulation, etc. 3. subject to supervision or regulation: a directed reading program for students. in mathematics: 1. (of an angle or vector) having positive or negative direction or orientation assigned. 2. (of a number, line, or angle) having either a positive or negative sign to distinguish measurement in one direction or orientation from that in the opposite direction or orientation. 3. having a positive or negative sense: directed line segment. Related Words: conducted, controlled, organized, aimed, managed, guided, counseled, focused, sponsored, assisted, orderly, purposeful. Origin: First recorded in 1530–40; direct + -ed2. See direct. Source 1, Source 2.