Synonyms of attentive

1 Syllable

glued

2 Syllables

jealous, gallant, alert, kindly, knowhow, warier, studious, conscious, watchful, friendlier, sentient, valuing, mindful, heedful, sharp-eyed, intent, thoughtful, friendly, hooked, courteous, discreet, enrapt, guarded, wary, friendliest, loving, kindlier, docious

3 Syllables

unsleeping, politer, wakeful, vigilant, sheeplike, awake, observant, obedient, politest, sensible, conscientious, awaking, diligent, enthralled, advertent, assiduous, careful, immersed, museful, awaked, listening, insomniac, well-thought-out, circumspect, warm-hearted, pensive, riveted, perceiving, regardful, aware, well-trained, preoccupied

4 Syllables

solicitous, overcautious, possessory, interested, wide-awake, pertinacious, intentive, fascinated, well-reasoned, law-abiding

5 Syllables

considerate, apperceptive, supraliminal, contemplative, ruminative