28 entries under complex topic. ×

19
hefty(adjective, hard, difficult)
19
ponderous(adjective, hard, difficult)
19
profound(adjective, hard, difficult)
19
weighty(adjective, hard, difficult)
18
ambitious(adjective, hard, difficult)
18
grinding(adjective, hard, difficult)
18
rugged(adjective, hard, difficult)
18
unbearable(adjective, hard, difficult)
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APASmart Define. (2015). punishing thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/punishing/thesaurus/synonyms
ChicagoSmart Define. 2015. "punishing thesaurus" https://smartdefine.org/punishing/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, punishing thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/punishing/thesaurus/synonyms>.
MLASmart Define. "punishing thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/punishing/thesaurus/synonyms>