Synonyms|1.4kAntonyms|464|Broader|16Narrower|51Related|1.9k

81 entries under idiom topic. ×

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not born yesterday on the lookout(expression, wary, mistrustful, distrustful)
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not casual
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not lax
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not wandering
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on safe side(expression, adjective, sure, safe)
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on the rims(expression, frugal, parsimonious, thrifty)
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on the stick(expression, alert, aware, clued-in)
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on your guard(expression, alert, attentive, watchful)
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on your toes(expression, alert, aware, clued-in)
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pay attention
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play gooseberry(expression, care)
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set watch(expression, care)
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shut fast
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small thing
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taking care(expression, care)
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taking heed
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tried and true(expression, adjective, sure, safe)
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with care
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with weather eye open(expression, keen, alert, attentive)
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with your wits about you(expression, alert, aware, clued-in)
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APASmart Define. (2016). careful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/careful/thesaurus/synonyms
ChicagoSmart Define. 2016. "careful thesaurus" https://smartdefine.org/careful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, careful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/careful/thesaurus/synonyms>.
MLASmart Define. "careful thesaurus" 24 January 2016. Web. 29 September 2026. <https://smartdefine.org/careful/thesaurus/synonyms>