Synonyms|164Antonyms|16|Broader|4Narrower|0Related|52
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on the alert
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on the beam(expression, idiom, sympathetic, witting, all-embracing)
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on the job(expression, adjective, adverb, sharp, bright)
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on to(expression, awake, sleepless, insomniac)
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on top of(expression, idiom, adverb, sharp, alive)
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paying attention
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perceiving(awake, sleepless, insomniac)
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perceptive
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percipient(sympathetic, witting, awake, sleepless, insomniac)
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perky
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plugged in(expression, sympathetic, witting, all-embracing)
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punchy
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quick
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racy
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ready
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realizing(sympathetic, witting, all-embracing)
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recognizing(awake, sleepless, insomniac)
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regardful
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remarking(awake, sleepless, insomniac)
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responsive(adjective, early, awake, sleepless, insomniac)
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APASmart Define. (2015). wide awake thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/wide_awake/thesaurus/synonyms
ChicagoSmart Define. 2015. "wide awake thesaurus" https://smartdefine.org/wide_awake/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, wide awake thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/wide_awake/thesaurus/synonyms>.
MLASmart Define. "wide awake thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/wide_awake/thesaurus/synonyms>