Synonyms|18Antonyms|2|Broader|2Narrower|0Related|3
1
always
1
in many cases
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APASmart Define. (2011). once in a blue moon thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/once_in_a_blue_moon/thesaurus/antonyms
ChicagoSmart Define. 2011. "once in a blue moon thesaurus" https://smartdefine.org/once_in_a_blue_moon/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2011, once in a blue moon thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/once_in_a_blue_moon/thesaurus/antonyms>.
MLASmart Define. "once in a blue moon thesaurus" 24 May 2011. Web. 30 September 2026. <https://smartdefine.org/once_in_a_blue_moon/thesaurus/antonyms>