617 entries under adjective topic. ×

30
continuous(calm, sound, smooth, right)
30
durable(calm, strong, secure, tough)
30
endless(sound, continue, certain, determined)
30
unalterable(calm, strong, secure, strain)
30
unceasing(strong, continue, firm, determined)
29
unremitting(strong, sound, continue, firm)
28
uninterrupted(calm, direct, sound, smooth)
28
unyielding(strong, secure, strain, flat)
27
unvarying(calm, strong, secure, smooth)
27
eternal(continue, certain, pause, steady)
25
everlasting(continue, steady, stable, fixed)
25
loyal(good, close, strong, kind)
25
rigid(strain, still, fixed, firmness)
25
sustained(strain, firmness, persistent, continuous)
24
settled(strong, strain, flat, firm)
22
changeless(change, firm, solid, certain)
22
stabile(calm, strong, secure, smooth)
22
staunch(noun, calm, good, close)
22
unending(continue, steady, stable, persistent)
22
long-standing(strain, firmness, labour, hardiness)
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APASmart Define. (2016). constant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/constant/thesaurus/synonyms
ChicagoSmart Define. 2016. "constant thesaurus" https://smartdefine.org/constant/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, constant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/constant/thesaurus/synonyms>.
MLASmart Define. "constant thesaurus" 12 February 2016. Web. 23 September 2026. <https://smartdefine.org/constant/thesaurus/synonyms>