87 entries under adverb topic. ×

11
diligently(thoroughly, seriously, vigorously, closely)
8
industriously(thoroughly, seriously, vigorously, closely)
7
carefully(fully, completely, vigorously, earnestly)
7
intently(thoroughly, closely, sharply, meticulously)
7
laboriously(thoroughly, vigorously, earnestly, hastily)
7
painstakingly(thoroughly, fully, vigorously, closely)
7
sedulously
6
strenuously(thoroughly, seriously, vigorously, closely)
6
persistently(thoroughly, seriously, vigorously, closely)
5
doggedly(thoroughly, closely, sharply, meticulously)
5
earnestly(thoroughly, fully, completely, hastily)
5
indefatigably(vigorously, earnestly, actively, hastily)
5
thoroughly(fully, completely, closely, carefully)
4
hard(very, thoroughly, fully, completely)
4
intensely
4
studiously(vigorously, earnestly, actively, hastily)
3
actively
3
arduously(vigorously, earnestly, actively, hastily)
3
determinedly(obstinately, stubbornly, diligently, doggedly)
3
energetically(vigorously, earnestly, actively, hastily)
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APASmart Define. (2016). assiduously thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/assiduously/thesaurus/synonyms
ChicagoSmart Define. 2016. "assiduously thesaurus" https://smartdefine.org/assiduously/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, assiduously thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/assiduously/thesaurus/synonyms>.
MLASmart Define. "assiduously thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/assiduously/thesaurus/synonyms>