51 entries under fiercely topic. ×

14
strongly(adverb, fast, sprightly, severely, seriously)
11
vigorously(adverb, strong, fast, seriously, intensely)
10
energetically(adverb, strong, fast, seriously, intensely)
9
forcefully(adverb, strong, roughly, strongly)
9
forcibly(adverb, strong, fast, sprightly, severely)
7
intensely(adverb, fast, greatness, sprightly, severely)
6
firmly(adverb, fast, fully, intensely)
5
actively(adverb, fast, sprightly, severely, intensely)
5
spiritedly(adverb, fast, seriously, intensely)
3
earnestly(adverb, fast, seriously, intensely)
3
heavily(adverb, fast, sprightly, severely, seriously)
3
violently(adverb, fast, sprightly, severely, seriously)
2
animatedly(adverb, fast, sprightly, seriously, intensely)
2
furiously(adverb, fast, sprightly, severely, seriously)
2
hard(adverb, strong, fast, intensely)
2
keenly(adverb, fast, sprightly, severely, seriously)
2
severely(adverb, fast, sprightly, intensely)
2
sharply(adverb, fast, sprightly, severely, seriously)
2
stormily(adverb, fast, sprightly, severely, seriously)
2
turbulently(adverb, fast, sprightly, severely, seriously)
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APASmart Define. (2015). powerfully thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/powerfully/thesaurus/synonyms
ChicagoSmart Define. 2015. "powerfully thesaurus" https://smartdefine.org/powerfully/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, powerfully thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/powerfully/thesaurus/synonyms>.
MLASmart Define. "powerfully thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/powerfully/thesaurus/synonyms>