15
nowadays(adverb, now, before, later, formerly)
5
before(adverb, earlier, ahead, once, erstwhile)
5
currently(adverb, now, because, after, for)
4
forward(adverb, away, earlier, before, ahead)
3
frontwards(adverb, forward, forwards, onwards, forrad)
3
already(adverb, earlier, before, once, erstwhile)
3
away(adverb, forward, ahead, onward, along)
2
frontward(adverb, forward, onward, frontwards)
2
hence(adverb, thus, therefore, accordingly)
2
of age(expression, time, season, generation)
2
onward(adverb, away, forward, ahead, by)
2
aforetime(adverb, earlier, before, once, erstwhile)
2
ahead(adverb, earlier, before, previously)
2
along(adverb, forward, by, beside, onward)
2
antecedently(adverb, before, ahead, beforehand, anteriorly)
2
athwart(adverb, against, crosswise, across, obliquely)
2
beforehand(adverb, earlier, before, ahead, previously)
2
beforetime(adverb, earlier, before, ahead, once)
2
beside(adverb, forward, by, onward, along)
2
earlier(adverb, before, ahead, once, erstwhile)
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APASmart Define. (2015). since thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/since/thesaurus/antonyms
ChicagoSmart Define. 2015. "since thesaurus" https://smartdefine.org/since/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2015, since thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/since/thesaurus/antonyms>.
MLASmart Define. "since thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/since/thesaurus/antonyms>