16 entries under thoroughly topic. ×

9
industriously(adjective, adverb, hard, vigorously)
8
hard(adverb, strong, closely, extremely)
6
assiduously(adverb, seriously, vigorously, closely)
6
diligently(adverb, seriously, vigorously, closely)
4
intently(adverb, closely, earnestly, heartily)
3
intensively(adverb, closely, meticulously, determinedly)
3
persistently(adverb, seriously, vigorously, closely)
2
doggedly(adverb, closely, actively, firmly)
2
painstakingly(adverb, seriously, vigorously, closely)
2
unremittingly(adverb, seriously, vigorously, closely)
1
closely(adverb, meticulously, determinedly, obstinately)
1
exhaustively(adverb, closely, meticulously, determinedly)
1
searchingly(adverb, closely, meticulously, determinedly)
1
steadily(adverb, vigorously, closely, strongly)
1
untiringly(adverb, closely, meticulously, determinedly)
1
with determination(expression, adverb, closely, firmly)
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APASmart Define. (2015). strenuously thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strenuously/thesaurus/synonyms
ChicagoSmart Define. 2015. "strenuously thesaurus" https://smartdefine.org/strenuously/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, strenuously thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strenuously/thesaurus/synonyms>.
MLASmart Define. "strenuously thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/strenuously/thesaurus/synonyms>