- Definitions|2
- Thesaurus|336
- Abbreviations|0
131 entries under adverb topic. ×
| relentlessly | |
| rigorously | |
| sonorously | |
| soundly | |
| steadfastly | |
| sullenly | |
| taxingly | |
| tiringly(heavily, laboriously, strenuously) | |
| unfalteringly | |
| untiringly | |
| urgently |
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| APA | Smart Define. (2015). arduously thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/arduously/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "arduously thesaurus" https://smartdefine.org/arduously/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, arduously thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/arduously/thesaurus/synonyms>. |
| MLA | Smart Define. "arduously thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/arduously/thesaurus/synonyms> |