250 entries under valuable topic. ×

6
essential(adjective, great, importance, important, significant)
6
main(adjective, strength, big, heavy, important)
5
meaningful(adjective, great, importance, important, significant)
5
key(adjective, great, big, important, insignificant)
5
weighty(adjective, great, importance, insignificant)
4
substantial(adjective, great, importance, important)
4
adult(noun, adjective, great, superior, big)
4
leading(adjective, great, low, big, important)
4
considerable(adjective, great, poor, big, large)
4
consequential(adjective, great, superior, importance, big)
4
massive(adjective, force, strength, big, heavy)
4
momentous(adjective, great, importance, lacking)
4
outstanding(adjective, great, importance, lacking)
4
serious(adjective, great, importance, big)
4
titanic(adjective, feature, great, important)
3
acute(adjective, feature, great, important)
3
better(adjective, feature, great, important)
3
critical(adjective, great, big, max)
3
crucial(adjective, feature, great, important)
3
elderly(noun, adjective, feature, person, great)
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APASmart Define. (2016). minor thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/minor/thesaurus/antonyms
ChicagoSmart Define. 2016. "minor thesaurus" https://smartdefine.org/minor/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, minor thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/minor/thesaurus/antonyms>.
MLASmart Define. "minor thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/minor/thesaurus/antonyms>