having the capacity for thought and reason especially to a high degree; is there intelligent life in the universe?; an intelligent question'

possessing sound knowledge; well-informed readers

[ Syn: well-informed ]

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

[ Syn: healthy , levelheaded , level-headed , sound ]

endowed with the capacity to reason

[ Syn: reasoning , thinking ]