regardful Synonyms

deferent deferential mindful heedful attentive observant prudent rapt respectful prepared open-eyed observing observative noticing keen unsleeping reverent overprotective on guard all ears sharp-eyed watchful wary vigilant thoughtful solicitous sleepless sharp scrupulous reverential interested intentive concentrating cognizant circumspect chary cautious careful aware awake argus-eyed alert advertent conscientious conscious considerate intent immersed hearkening guarded