Synonyms of observant

Adjective

1. observant, attentive (vs. inattentive)

usage: paying close attention especially to details

2. observant, observing, perceptive (vs. unperceptive)

usage: quick to notice; showing quick and keen perception

3. law-abiding, observant, lawful (vs. unlawful)

usage: (of individuals) adhering strictly to laws and rules and customs; "law-abiding citizens"; "observant of the speed limit"

Definition and meaning of observant (Dictionary)