123 entries under unusual topic. ×

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irregular(excellent, special, brilliant, rare)
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nondescript(special, rare)
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original(special, prime, rare, primary)
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out of the way(expression, idiom, special, rare)
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outre(special, rare)
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personal(adjective, extraordinary, exceptional, special)
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predominant(adjective, extraordinary, wonderful, exceptional)
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preponderant(exceptional, special)
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private(exceptional, special)
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queer(special, rare)
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scarce(excellent, special, brilliant, rare)
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seldom(special, rare)
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set(exceptional, special)
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sporadic(special, rare)
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surpassing(great, extraordinary, exceptional, outstanding)
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unaccustomed(special, rare)
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unfamiliar(special, rare)
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unheard of(expression, extraordinary, wonderful, exceptional)
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unimaginable(excellent, special, brilliant, rare)
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unique(adjective, feature, special, remarkable)
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APASmart Define. (2016). notable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/notable/thesaurus/synonyms
ChicagoSmart Define. 2016. "notable thesaurus" https://smartdefine.org/notable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, notable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/notable/thesaurus/synonyms>.
MLASmart Define. "notable thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/notable/thesaurus/synonyms>