97 entries under adverb topic. ×

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decisively(unmistakably, uncertainly, authentically, doubtfully)
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devotedly(unmistakably, authentically, doubtfully, indisputably)
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exactly(unmistakably, authentically, indisputably, veritably)
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exaggeratedly(little, unmistakably, authentically, indisputably)
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explicitly(unmistakably, authentically, indisputably, veritably)
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factually(unmistakably, authentically, doubtfully, indisputably)
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faultlessly(unmistakably, authentically, indisputably, veritably)
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fixedly(unmistakably, authentically, indisputably, veritably)
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for a fact(expression, idiom, uncertain, unmistakably)
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for certain(expression, obscure, dubious, unmistakably)
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for real(expression, dubious, questionable, unmistakably)
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in actuality(expression, unmistakably, authentically, indisputably)
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in all respects(expression, idiom, unmistakably, authentically)
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in every respect(expression, idiom, unmistakably, authentically)
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in fact(expression, unmistakably, authentically, indisputably)
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in point of fact(expression, idiom, unmistakably, authentically)
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in reality(expression, unmistakably, authentically, indisputably)
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in toto(expression, unmistakably, authentically, indisputably)
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in truth(expression, unmistakably, authentically, indisputably)
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incontrovertibly(unmistakably, authentically, indisputably, veritably)
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APASmart Define. (2015). indefinite thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/indefinite/thesaurus/antonyms
ChicagoSmart Define. 2015. "indefinite thesaurus" https://smartdefine.org/indefinite/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, indefinite thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/indefinite/thesaurus/antonyms>.
MLASmart Define. "indefinite thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/indefinite/thesaurus/antonyms>