116 entries under difficult topic. ×

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can of worms(expression, adjective, idiom, hard, fancy)
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cryptic(adjective, evil, obscure, sophisticated)
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dense(adjective, complex, involved, complicated)
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distressing(adjective, tough, rough, heavy)
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fatiguing(adjective, tough, rough, heavy)
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full of twists and turns(expression, adjective, idiom, complex)
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grueling(adjective, awkward, demanding, problematical)
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merciless(adjective, tough, rough, heavy)
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murder(adjective, tough, rough, heavy)
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slavish(adjective, tough, rough, heavy)
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testing(adjective, awkward, demanding, strenuous)
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tiring(adjective, tough, rough, heavy)
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unsparing(adjective, tough, rough, heavy)
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uphill battle(expression, adjective, tough, rough)
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wearing(adjective, tough, rough, heavy)
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wearying(adjective, tough, rough, heavy)
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APASmart Define. (2015). intricate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/intricate/thesaurus/synonyms
ChicagoSmart Define. 2015. "intricate thesaurus" https://smartdefine.org/intricate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, intricate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/intricate/thesaurus/synonyms>.
MLASmart Define. "intricate thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/intricate/thesaurus/synonyms>