Synonyms|572Antonyms|111|Broader|6Narrower|1Related|510

59 entries under understanding topic. ×

46
alert(adjective, feature, characteristic, keen)
45
watchful(adjective, feature, characteristic, cool)
36
attentive(adjective, feature, characteristic, keen)
30
observant(adjective, feature, characteristic, cool)
15
aware(adjective, feature, characteristic, cool)
14
mindful(adjective, keen, sensible, certain)
12
sharp(adjective, cool, bright, lively)
11
awake(adjective, cool, reasonable, keen)
8
keen(adjective, sensible, certain, alert)
6
conscious(adjective, cool, keen, sensible)
5
judicious(adjective, cool, reasonable, sensible)
4
observing(adjective, keen, sensible, certain)
4
wise(adjective, cool, reasonable, sharp)
3
discerning(adjective, cool, reasonable, keen)
3
perceptive(adjective, cool, sharp, bright)
3
sagacious(adjective, cool, reasonable, sensible)
3
sage(adjective, cool, reasonable, sensible)
3
sensible(adjective, cool, reasonable, keen)
2
alive to(expression, adjective, keen, sensible)
2
cognizant(adjective, cool, keen, sensible)
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ChicagoSmart Define. 2015. "vigilant thesaurus" https://smartdefine.org/vigilant/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, vigilant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/vigilant/thesaurus/synonyms>.
MLASmart Define. "vigilant thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/vigilant/thesaurus/synonyms>