4
ambiguous(adjective, cover, obscure, secret, pertaining)
4
distant(adjective, distance)
4
enigmatic(adjective, cover, obscure, secret, pertaining)
4
equivocal(adjective, cover, obscure, secret, pertaining)
4
extraneous(adjective, extraneousness)
4
foreign(adjective, extraneousness)
4
last(noun, adjective, end, hinder, extreme)
4
latent
4
occult
4
subsequent(adjective, precede)
4
subterraneous
4
under cover(expression, adjective, idiom, cover, show)
4
under wraps(expression, adjective, obscure, secret, hidden)
4
unexpressed(adjective, cover, obscure, secret, pertaining)
3
remoter
3
secondary(adjective, cover, obscure, last, secret)
3
surreptitious
3
undivulged(adjective, cover, obscure, secret, pertaining)
3
unrevealed
3
unsaid(adjective, cover, obscure, secret, pertaining)
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APASmart Define. (2015). ulterior thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ulterior/thesaurus/synonyms
ChicagoSmart Define. 2015. "ulterior thesaurus" https://smartdefine.org/ulterior/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, ulterior thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ulterior/thesaurus/synonyms>.
MLASmart Define. "ulterior thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/ulterior/thesaurus/synonyms>