Synonyms of intentive

1 Syllable
keen, bright, sharp, quick
2 Syllables
searching, correct, surveying, mindful, sharp-eyed, heedful, arrect, eager
3 Syllables
discerning, deducing, vigilant, observant, obedient, advertent, clear-sighted, eagle-eyed, detecting, alive, questioning, regardful
4 Syllables
perceptive, penetrating, understanding, considering, sensitive, interested, contemplating, intelligent, wide-awake, discovering, comprehending, attentive
5 Syllables
discriminating, observative