79 entries under adjective topic. ×

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echinated(tricky, complicated, thorny, spiky)
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hot
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involved(tricky, complicated, thorny, spiky)
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mordant
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peevish
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peppery
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perplexing
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petulant
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piquant
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setal
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setarious
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setigerous
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spiculose
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spinulose
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sticky
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stimulating(tricky, complicated, thorny, spiky)
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trying(tricky, complicated, thorny, spiky)
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vexatious
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waspish
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APASmart Define. (2015). spiny thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/spiny/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiny thesaurus" https://smartdefine.org/spiny/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, spiny thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/spiny/thesaurus/synonyms>.
MLASmart Define. "spiny thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/spiny/thesaurus/synonyms>