Synonyms|648Antonyms|154|Broader|16Narrower|18Related|740

96 entries under expression topic. ×

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on the stick(idiom, alert, aware, clued-in)
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on your guard(idiom, alert, aware, attentive)
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on your toes(idiom, alert, aware, clued-in)
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playing safe(thoughtful, sober, prudent, wary)
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quick to notice
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sensitive to(perceptive, insightful)
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sharp sighted
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taken as a whole(idiom, sympathetic, witting, all-embracing)
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turned on(cool, familiar, alive)
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up and about(idiom, conscious, wide-awake, wakeful)
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up to date(idiom, sympathetic, witting, all-embracing)
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upon the stretch(idiom, attention)
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waiting on(keen, alert, careful, attentive)
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well thought-out(adjective, kind, friendly, polite)
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with your wits about you(idiom, alert, aware, clued-in)
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alive to(verb, phrasal verb, attention, careful)
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APASmart Define. (2016). observant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/observant/thesaurus/synonyms
ChicagoSmart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, observant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>.
MLASmart Define. "observant thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms>