100 entries under observant topic. ×

1
perceiving(adjective, understanding, keen, sensible, certain)
1
recognizing(adjective, understanding, keen, sensible, certain)
1
remarking(adjective, understanding, keen, sensible, certain)
1
seeing(adjective, understanding, keen, sensible, certain)
1
sensitive to(expression, adjective, understanding, keen, sensible)
1
supraliminal(adjective, understanding, keen, sensible, certain)
1
sure(adjective, understanding, keen, sensible, certain)
1
suspicious(adjective, careful, considerate, cautious, attentive)
1
with eyes peeled(expression, adjective, idiom, keen, careful)
1
witting(adjective, understanding, keen, sensible, certain)
0
able to recognize(expression, adjective, idiom, understanding, keen)
0
accepting(adjective, attentive)
0
attending(adjective, set, determined, deep, fixed)
0
gnostic(understanding, keen, sensitive, perceptive, discerning)
0
hearing(adjective, attentive)
0
heeding(adjective, attentive)
0
insighted(understanding, keen, sensitive, perceptive, discerning)
0
receiving(adjective, attentive)
0
see after(expression, adjective, careful, cautious, attentive)
0
see to(expression, adjective, careful, cautious, attentive)
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APASmart Define. (2016). alert thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/alert/thesaurus/synonyms
ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>