84 entries under significant topic. ×

1
extraordinary(adjective, strong, solid, big, important)
1
heavy(big, substantial, large, vital)
1
influential(vital, imperative)
1
key(large, vital, considerable, imperative)
1
large(adjective, strong, great, big, important)
1
major-league(excellent, large, considerable)
1
material(big, substantial, large, vital)
1
meaningful(adjective, good, sensible, big, important)
1
necessary(adjective, great, big, substantial)
1
paramount(vital, imperative)
1
plentiful(adjective, strong, smart, solid, big)
1
popular(adjective, good, excellent, fine, superior)
1
prime(adjective, good, bad, great, sound)
1
principal(big, substantial, large, vital)
1
serious(adjective, good, big, important)
1
signal(adjective, vital, imperative)
1
solid(adjective, good, strong, great, excellent)
1
sound(bad, pleasant, fine, useful)
1
tidy(large, considerable)
1
vital(big, substantial, precious, imperative)
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APASmart Define. (2016). valuable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/valuable/thesaurus/synonyms
ChicagoSmart Define. 2016. "valuable thesaurus" https://smartdefine.org/valuable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, valuable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/valuable/thesaurus/synonyms>.
MLASmart Define. "valuable thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/valuable/thesaurus/synonyms>