Adjective intelligent has 4 senses
- intelligent - having the capacity for thought and reason especially to a high degree; "is there intelligent life in the universe?"; "an intelligent question"
Antonyms: unintelligent, stupid, brainless, headless, feebleminded, half-witted, slow-witted, imbecile, imbecilic, idiotic, moronic
- intelligent, well-informed - possessing sound knowledge; "well-informed readers"
Antonyms: naive, naif (indirect, via sophisticated)
- healthy, intelligent, levelheaded, sound - exercising or showing good judgment; "healthy scepticism"; "a healthy fear of rattlesnakes"; "the healthy attitude of French laws"; "healthy relations between labor and management"; "an intelligent solution"; "a sound approach to the problem"; "sound advice"; "no sound explanation for his decision"
Antonym: unreasonable (indirect, via reasonable)
- intelligent, reasoning, thinking - endowed with the capacity to reason
Antonym: irrational (indirect, via rational)
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