Synonyms|10Antonyms|0|Broader|0Narrower|0Related|0
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calmly(adverb, quietly, stealthily, silently, mutely)
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mutely(adverb, quietly, soundlessly)
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noiselessly(adverb, quietly, soundlessly)
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silently(adverb, soundlessly)
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soundlessly(adverb, quietly)
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speechlessly(adverb, quietly, soundlessly)
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stilly(adverb, quietly, soundlessly)
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without a sound(expression, idiom, adverb, quietly, soundlessly)
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without noise(expression, adverb, quietly, soundlessly)
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wordlessly(adverb, quietly, soundlessly)
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APASmart Define. (1970). as still as a mouse thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/as_still_as_a_mouse/thesaurus/synonyms
ChicagoSmart Define. 1970. "as still as a mouse thesaurus" https://smartdefine.org/as_still_as_a_mouse/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 1970, as still as a mouse thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/as_still_as_a_mouse/thesaurus/synonyms>.
MLASmart Define. "as still as a mouse thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/as_still_as_a_mouse/thesaurus/synonyms>