38 entries under hastily topic. ×

12
carefully(adverb, thoroughly, seriously, intensely, vigorously)
11
indefatigably(adverb, vigorously, earnestly, actively)
9
industriously(adverb, thoroughly, seriously, vigorously, closely)
8
assiduously(adverb, thoroughly, seriously, vigorously, closely)
7
strenuously(adverb, thoroughly, seriously, vigorously, closely)
6
painstakingly(adverb, thoroughly, seriously, vigorously, closely)
6
persistently(adverb, thoroughly, seriously, vigorously, closely)
6
laboriously(adverb, vigorously, earnestly, actively)
5
fervently(adverb, vigorously, earnestly, actively)
5
zealously(adverb, vigorously, earnestly, actively)
4
energetically(adverb, vigorously, earnestly, actively)
4
perseveringly(adverb, vigorously, earnestly, actively)
3
ardently(adverb, vigorously, earnestly, actively)
3
studiously(adverb, vigorously, earnestly, actively)
3
unremittingly(adverb, thoroughly, seriously, vigorously, closely)
3
vigilantly(adverb, vigorously, earnestly, actively)
2
arduously(adverb, vigorously, earnestly, actively)
2
earnestly(adverb, thoroughly, vigorously, closely, actively)
2
vigorously(adverb, earnestly, actively, carefully)
1
actively intently(expression, adverb, vigorously, earnestly)
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APASmart Define. (2015). diligently thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/diligently/thesaurus/synonyms
ChicagoSmart Define. 2015. "diligently thesaurus" https://smartdefine.org/diligently/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, diligently thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/diligently/thesaurus/synonyms>.
MLASmart Define. "diligently thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/diligently/thesaurus/synonyms>