60 entries under observant topic. ×
| sharp(adjective, understanding, strong, hard, cool) | |
| keen(adjective, understanding, strong, cool, severe) | |
| acute(adjective, understanding, strong, keen, sharp) | |
| incisive(adjective, understanding, strong, hard, keen) | |
| perceptive(adjective, understanding, strong, keen, sharp) | |
| discerning(adjective, understanding, reasonable, keen, sharp) | |
| perspicacious(adjective, sharp, sensitive, intelligent, perceptive) | |
| astute(adjective, understanding, keen, sharp, smart) | |
| sensitive(adjective, understanding, sharp, smart, alert) | |
| penetrative(adjective, understanding, sharp, smart, bright) | |
| quick(adjective, understanding, sharp, smart, bright) | |
| brainy(adjective, understanding, keen, sharp, smart) | |
| alert(adjective, understanding, strong, sharp, smart) | |
| apperceptive(perceptive, insightful) | |
| awake(understanding, sharp, smart, sensitive, shrewd) | |
| informed(deep, thoughtful, perceptive, insightful) | |
| understanding(adjective, sharp, smart, bright, alert) | |
| alive to(verb, expression, phrasal verb, perceptive) | |
| attentive(alert, intelligent, perceptive, watchful) | |
| cognizant(perceptive, insightful, intelligence wisdom) |
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| APA | Smart Define. (2015). penetrating thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/penetrating/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "penetrating thesaurus" https://smartdefine.org/penetrating/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, penetrating thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/penetrating/thesaurus/synonyms>. |
| MLA | Smart Define. "penetrating thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/penetrating/thesaurus/synonyms> |