having the capacity for thought and reason especially to a high degree; "is there intelligent life in the universe?"; "an intelligent question"
7
attentive
(often followed by `to') giving care or attention; "attentive to details"; "the nurse was attentive to her patient"; "an attentive suitor"
2
mindful
bearing in mind; attentive to; "ever mindful of her health"; "mindful of his responsibilities"; "mindful of these criticisms, I shall attempt to justify my action"
2
observant
paying close attention especially to details
1
wise
having or prompted by wisdom or discernment; "a wise leader"; "a wise and perceptive comment"
1
apt
mentally quick and resourceful; "an apt pupil"; "you are a clever man...you reason well and your wit is bold"-Bram Stoker
