1
persevering(adjective, set, strong, flat, firm)
1
persistent(adjective, strong, flat, certain, determined)
1
persuaded(adjective, clear, certain, definite, positive)
1
planned(adjective, certain, limited, definite, inflexible)
1
positive(adjective, set, clear, complete, firm)
1
prearranged(adjective, certain, limited, definite, inflexible)
1
precise(adjective, certain, limited, definite, inflexible)
1
rank(adjective, complete, total, definite, absolute)
1
real(adjective, set, clear, complete, warm)
1
regular(adjective, firm, solid, steady, substantial)
1
reliable(adjective, firm, solid, certain, stable)
1
resolute(adjective, set, strong, flat, firm)
1
resolute established(expression, adjective, certain, limited, definite)
1
resolved(adjective, strong, flat, certain, determined)
1
restricted(adjective, certain, limited, definite, inflexible)
1
rigged(adjective, certain, limited, definite, inflexible)
1
rock solid
1
rooted(adjective, certain, limited, definite, restricted)
1
same
1
satisfied(adjective, clear, certain, definite, positive)
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APASmart Define. (2015). never-failing thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/never-failing/thesaurus/synonyms
ChicagoSmart Define. 2015. "never-failing thesaurus" https://smartdefine.org/never-failing/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, never-failing thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/never-failing/thesaurus/synonyms>.
MLASmart Define. "never-failing thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/never-failing/thesaurus/synonyms>