American English

Definition of observant adjective from the Oxford Advanced American Dictionary



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  1. 1good at noticing things around you synonym sharp-eyed Observant walkers may see red deer along this stretch of the road. How very observant of you! She keeps an observant eye on developments in education. He was acutely observant of the poverty around him.
  2. 2(formal) careful to obey religious laws and customs
See the Oxford Advanced Learner's Dictionary entry: observant