14 entries under adverb topic. ×

13
never(manner, rareness, periodicity)
9
uncommonly(manner, rareness, periodicity)
9
unusually(manner, rareness, periodicity)
8
exceptionally(manner, rareness, periodicity)
8
infrequently(manner, rareness, periodicity)
8
rarely(manner, rareness, periodicity)
8
seldom(manner, rareness, periodicity)
8
sometimes(manner, rareness, periodicity)
1
even(rareness, periodicity)
1
indeed(rareness, periodicity)
1
nay(rareness, periodicity)
1
true(rareness, periodicity)
1
truly(rareness, periodicity)
1
verily(rareness, periodicity)
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APASmart Define. (2015). once again thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/once_again/thesaurus/antonyms
ChicagoSmart Define. 2015. "once again thesaurus" https://smartdefine.org/once_again/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, once again thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/once_again/thesaurus/antonyms>.
MLASmart Define. "once again thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/once_again/thesaurus/antonyms>