2 entries under usual topic. ×

15
normal(adjective, unusual, proper, common, rational)
2
customary(adjective, established)
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APASmart Define. (2016). irregular thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/irregular/thesaurus/antonyms
ChicagoSmart Define. 2016. "irregular thesaurus" https://smartdefine.org/irregular/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, irregular thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/irregular/thesaurus/antonyms>.
MLASmart Define. "irregular thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/irregular/thesaurus/antonyms>