1
like a leech(expression, idiom)
1
like a rock(expression, idiom, adverb, severely, definitely)
1
loudly
1
lustily
1
markedly
1
mindfully(adverb, hard, thoroughly, closely, carefully)
1
minutely(adverb, hard, thoroughly, closely, carefully)
1
motionlessly(adverb, severely, strongly, definitely, strictly)
1
nearly(adverb, hard, thoroughly, closely, carefully)
1
painfully(adverb, fast, badly, severely, intensely)
1
physically(adverb, solidly)
1
positively(adverb, absolutely, really, exactly, certainly)
1
precisely(absolutely, very, really, exactly, certainly)
1
pungently
1
really(absolutely, very, exactly, certainly, truly)
1
regularly
1
reliably(adverb, absolutely, very, really, exactly)
1
resistantly
1
resolvedly
1
righteously(absolutely, very, really, exactly, truly)
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APASmart Define. (2015). firmly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/firmly/thesaurus/synonyms
ChicagoSmart Define. 2015. "firmly thesaurus" https://smartdefine.org/firmly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, firmly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/firmly/thesaurus/synonyms>.
MLASmart Define. "firmly thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/firmly/thesaurus/synonyms>