2
monochrome(adjective, dull, steady, stable, regular)
2
plane(adjective, quiet, smooth, right, soft)
2
plumb(adjective, direct, smooth, right, flat)
2
reiterative
2
relentless(adjective, steady, persistent, constant, continuous)
2
rocky
2
round-the-clock(adjective, continual)
2
seamless(adjective, uniform, continuous)
2
staunch(adjective, calm, strong, secure, firm)
2
staying
2
steady-going(adjective, firm, solid, steady, substantial)
2
still(adjective, quiet, soft, gentle, flat)
2
systematic(adjective, calm, smooth, ordinary, usual)
2
tiresome
2
tough(calm, strong, solid, steady, substantial)
2
unbending
2
uncompromising(adjective, clear, certain, definite, unquestionable)
2
unfading(fixed, static, unchangeable)
2
uninteresting
2
unmodified
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APASmart Define. (2015). unvarying thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unvarying/thesaurus/synonyms
ChicagoSmart Define. 2015. "unvarying thesaurus" https://smartdefine.org/unvarying/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unvarying thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unvarying/thesaurus/synonyms>.
MLASmart Define. "unvarying thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/unvarying/thesaurus/synonyms>