observant
US
UK observant adj: (good at noticing)
SC 善于观察的 shàn yú guān chá de
SC 观察力敏锐的 shàn yú guān chá de，guān chá lì mǐn ruì de
My observant hairdresser noticed a new mole on my scalp.
observant adj: (attentive, watchful)
SC 机警的，注意的 jī jǐng de，zhù yì de
My sister is observant.
我妹妹很机警。
observant adj: (religion: strict, practicing) (宗教)
SC 严格遵守的
Judy's family are observant Christians.
裘德一家是谨遵教义的基督徒。
nonobservant, non-observant adj: (not following: religious law, etc.) (指对宗教戒律等)
SC 不遵循的，不信奉的，不拥护的 bù zūn xún de，bú xìn fèng de，bù yōng hù de