Synonyms of intelligent in English:

intelligent


See US English definition of intelligent

See UK English definition of intelligent

See Spanish definition of inteligente

adjective

1‘Breuer is an intelligent writer’

SYNONYMS
clever, bright, brilliant, sharp, quick, quick-witted, quick on the uptake, smart, canny, astute, intuitive, thinking, acute, alert, keen, insightful, perceptive, perspicacious, penetrating, discerning
ingenious, inventive
knowledgeable
apt, able, gifted, talented
informal brainy, genius
informal have a good head on one's shoulders, there are no flies on …
British informal know how many beans make five
North American informal whip-smart
ANTONYMS

stupid

2‘an extraterrestrial intelligent being’

SYNONYMS
rational, capable of thought, higher-order
ANTONYMS

non-rational

3‘intelligent machines’

SYNONYMS
robotic, automatic, self-regulating, capable of learning
informal smart