Synonyms|643Antonyms|183|Broader|10Narrower|12Related|1.3k

3 entries under adjective topic. ×

2
difficult
1
effortful
1
hard
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APASmart Define. (2016). arduous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/arduous/thesaurus/related
ChicagoSmart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/related (accessed September 25, 2026).
HarvardSmart Define 2016, arduous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/arduous/thesaurus/related>.
MLASmart Define. "arduous thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/arduous/thesaurus/related>