13
never(adverb, manner, rareness, periodicity)
9
uncommonly(adverb, manner, rareness, periodicity)
9
unusually(adverb, manner, rareness, periodicity)
8
exceptionally(adverb, manner, rareness, periodicity)
8
infrequently(adverb, manner, rareness, periodicity)
8
rarely(adverb, manner, rareness, periodicity)
8
seldom(adverb, manner, rareness, periodicity)
8
sometimes(adverb, manner, rareness, periodicity)
1
even(adverb, rareness, periodicity)
1
indeed(adverb, rareness, periodicity)
1
nay(adverb, rareness, periodicity)
1
true(adverb, rareness, periodicity)
1
truly(adverb, rareness, periodicity)
1
verily(adverb, rareness, periodicity)
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APASmart Define. (2015). once again thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/once_again/thesaurus/antonyms
ChicagoSmart Define. 2015. "once again thesaurus" https://smartdefine.org/once_again/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, once again thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/once_again/thesaurus/antonyms>.
MLASmart Define. "once again thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/once_again/thesaurus/antonyms>