knocks one socks off (verb) thrill: excite, stimulate
Sinonime: advertent,
alive,
attentive,
bright, clear-sighted, comprehending,
considering, contemplating,
correct, deducing, detecting,
discerning, discovering, discriminating,
eager, eagle-eyed, heedful,
intelligent, intentive,
interested,
keen,
mindful, not missing a trick,
obedient, observative, on one's toes, on the ball,
penetrating, perceptive,
questioning,
quick, regardful,
searching,
sensitive,
sharp, sharp-eyed, surveying,
understanding,
vigilant, wide-awake
Antonime: careless,
inattentive,
indifferent,
thoughtless,
unaware, unmindful, unobservant, unwatchful