- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
60 entries under deep topic. ×
| alert(adjective, feature, characteristic, understanding, strong) | |
| perceptive(adjective, person, understanding, strong, open) | |
| sharp(adjective, understanding, strong, cool, keen) | |
| keen(adjective, understanding, strong, sharp, smart) | |
| intent(adjective, feature, characteristic, strong, intense) | |
| interested(adjective, strong, open, friendly, intense) | |
| penetrating(adjective, understanding, strong, sharp, smart) | |
| acute(adjective, understanding, strong, keen, sharp) | |
| agog(adjective, strong, keen, intense, powerful) | |
| quick-witted(adjective, strong, cool, sharp, smart) | |
| breathless(adjective, strong, intense, powerful, attention) | |
| devoted(adjective, strong, intense, powerful) | |
| eager(adjective, strong, intense, powerful, alert) | |
| earnest(adjective, strong, intense, powerful) | |
| intense(adjective, strong, sharp, powerful) | |
| anxious(adjective, strong, kind, keen, friendly) | |
| caustic(adjective, strong, sharp, intense, powerful) | |
| incisive(adjective, understanding, strong, keen, sharp) | |
| lively(adjective, strong, sharp, bright, intense) | |
| piercing(adjective, strong, sharp, intense, powerful) |
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| APA | Smart Define. (2016). observant thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/observant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, observant thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>. |
| MLA | Smart Define. "observant thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms> |