5
forward(adverb, beginning, first, future)
4
ahead(adjective, adverb, beginning, forward, future)
3
forth(adjective, beginning, forward, future)
3
progressing(adjective, forward, onward, advancing)
3
progressive(adjective, forward, onward, advancing)
2
in advance(expression, early, ahead, advancing)
2
in future(expression, beginning, forward, future)
2
onward(adjective, beginning, forward, future)
1
leading(adjective, beginning, forward, future)
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APASmart Define. (1970). back in thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/back_in/thesaurus/antonyms
ChicagoSmart Define. 1970. "back in thesaurus" https://smartdefine.org/back_in/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 1970, back in thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/back_in/thesaurus/antonyms>.
MLASmart Define. "back in thesaurus" 1 January 1970. Web. 22 September 2026. <https://smartdefine.org/back_in/thesaurus/antonyms>