Synonyms|842Antonyms|195|Broader|5Narrower|0Related|597
2
hermetically(adverb, tightly)
2
intensely(adverb, fast, badly, severely, fiercely)
2
loyally
2
muscularly(adverb, strongly)
2
obdurately
2
permanently(adverb, stably)
2
perseveringly
2
potently(adverb, strongly)
2
purposefully
2
relentlessly(adverb, fast, intensely, fiercely, violently)
2
responsibly
2
rigorously(adverb, fast, badly, severely, intensely)
2
seriously(adverb, fast, badly, severely, intensely)
2
severely(adverb, fast, thoroughly, intensely, fiercely)
2
snugly(adverb, tightly)
2
strictly(adverb, hard, badly, severely, thoroughly)
2
substantially(adverb, solidly)
2
tautly(adverb, tightly)
2
tensely(adverb, tightly)
2
unflinchingly(adverb, sharply, solidly, tightly, steadfastly)
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APASmart Define. (2015). firmly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/firmly/thesaurus/synonyms
ChicagoSmart Define. 2015. "firmly thesaurus" https://smartdefine.org/firmly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, firmly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/firmly/thesaurus/synonyms>.
MLASmart Define. "firmly thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/firmly/thesaurus/synonyms>