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9
facile(adjective, weak, easy, profound)
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APASmart Define. (2016). arduous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/arduous/thesaurus/antonyms
ChicagoSmart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, arduous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/arduous/thesaurus/antonyms>.
MLASmart Define. "arduous thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/arduous/thesaurus/antonyms>