having good understanding or a high mental capacity; quick to comprehend, as persons or animals

an intelligent student.

displaying or characterized by quickness of understanding, sound thought, or good judgment

an intelligent reply.

having the faculty of reasoning and understanding; possessing intelligence

intelligent beings in outer space.

Computers . pertaining to the ability to do data processing locally; smart

An intelligent terminal can edit input before transmission to a host computer. Compare dumb def. 8

Archaic . having understanding or knowledge (usually fol. by of ).

adjective

foolish , idiotic , imbecile , stupid , unintelligent

adjective

able , acute , alert , alive , all there , apt , astute , brainy * , bright , brilliant , calculating , capable , clever , comprehending , creative , deep * , discerning , enlightened , exceptional , highbrow * , imaginative , ingenious , instructed , inventive , keen , knowing , knowledgeable , original , penetrating , perceptive , perspicacious , profound , quick , quick-witted , rational , ready , reasonable , resourceful , responsible , sage , sharp , smart , thinking , together * , understanding , well-informed , whiz * , wise , wittynotes:people are intelligent ; statements are intelligible , intellectual , sharp-witted , consequent , cognizant , logical , sensible