50 entries under powerfully topic. ×

16
earnestly(adverb, fast, resolution, intensely, fiercely)
14
severely(adverb, fast, badly, completely, intensely)
9
intensely(adverb, fast, badly, severely, thoroughly)
4
heavily(adverb, fast, sprightly, severely, intensely)
3
actively(adverb, fast, sprightly, severely, intensely)
3
hard(adverb, fast, badly, severely, intensely)
3
vigorously(adverb, fast, intensely, fiercely, earnestly)
2
animatedly(adverb, fast, intensely, fiercely, vigorously)
2
briskly(adverb, fast, intensely, fiercely, vigorously)
2
energetically(adverb, fast, intensely, fiercely, vigorously)
2
firmly(adverb, fast, badly, severely, intensely)
2
furiously(adverb, fast, sprightly, severely, intensely)
2
relentlessly(adverb, fast, sprightly, severely, intensely)
2
rigorously(adverb, fast, badly, sprightly, intensely)
2
spiritedly(adverb, fast, intensely, fiercely, vigorously)
2
steadfastly(adverb, fast, intensely, fiercely, violently)
2
strongly(adverb, fast, sprightly, severely, intensely)
2
vivaciously(adverb, fast, intensely, fiercely, vigorously)
1
angrily(adverb, fast, sprightly, severely, intensely)
1
boisterously(adverb, fast, sprightly, severely, intensely)
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APASmart Define. (2016). seriously thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/seriously/thesaurus/synonyms
ChicagoSmart Define. 2016. "seriously thesaurus" https://smartdefine.org/seriously/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, seriously thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/seriously/thesaurus/synonyms>.
MLASmart Define. "seriously thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/seriously/thesaurus/synonyms>