51 entries under complicated topic. ×

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hard(obscure, solid, complex, dense, tricky)
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hard to explain(expression, idiom, hard, tricky)
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hard to solve(expression, idiom, hard, tricky)
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loose(hard, tricky)
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obstinate(hard, tricky)
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problematical(hard, tricky)
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thorny(hard, tricky)
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ticklish(hard, tricky)
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tricky(hard, sneaky, covert, secretive)
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troublesome(hard, tricky)
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vexing(hard, tricky)
<123>
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APASmart Define. (2015). hidden thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, hidden thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>.
MLASmart Define. "hidden thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms>