- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
69 entries under vigilant topic. ×
| guarded(adjective, adverb, reasonable, keen, sensible) | |
| on the ball(expression, adjective, idiom, keen, sharp) | |
| sharp-eyed(adjective, sympathetic, alert, witting, attentive) | |
| intelligent(adjective, understanding, cool, sharp, smart) | |
| interested(adjective, strong, open, friendly, intense) | |
| meticulous(adjective, alert, careful, sober, attentive) | |
| penetrating(adjective, understanding, strong, sharp, smart) | |
| scrupulous(adjective, alert, careful, thoughtful, sober) | |
| diligent(adjective, attentive) | |
| sensitive(adjective, understanding, open, kind, keen) | |
| wakeful(adjective, keen, alert, careful, restless) | |
| alive(adjective, cool, sensible, alert, significant) | |
| bright(adjective, open, cool, sharp, friendly) | |
| concerned(adjective, kind, friendly, deliberate, alert) | |
| conscientious(adjective, careful, thoughtful, sober, considerate) | |
| discreet(adjective, understanding, kind, keen, sharp) | |
| solicitous(adjective, kind, deliberate, alert, careful) | |
| chary(adjective, reasonable, sensible, deliberate, restrained) | |
| deliberate(adjective, cool, kind, friendly, alert) | |
| judicious(adjective, understanding, cool, reasonable, keen) |
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| APA | Smart Define. (2016). observant thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/observant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, observant thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>. |
| MLA | Smart Define. "observant thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms> |