58 entries under adjective topic. ×

8
momentous(importance, significance, main, magnitude)
8
powerful(importance, significance, main, magnitude)
8
principal(importance, significance, main, magnitude)
8
serious(importance, significance, main, magnitude)
8
substantial(importance, significance, main, magnitude)
8
weighty(importance, significance, main, magnitude)
7
crucial(importance, significance, main, magnitude)
7
high-profile(importance, significance, main, magnitude)
7
nontrivial(importance, significance, main, magnitude)
7
notional(importance, significance, main, magnitude)
7
relevant(importance, significance, main, magnitude)
7
valid(importance, significance, main, magnitude)
7
valued(importance, significance, main, magnitude)
6
axial(importance, significance, main, magnitude)
6
basic(importance, significance, main, magnitude)
6
cardinal(importance, significance, main, magnitude)
6
center(importance, significance, main, magnitude)
6
centric(importance, significance, main, magnitude)
6
chief(importance, significance, main, magnitude)
6
dominant(importance, significance, main, magnitude)
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APASmart Define. (2013). less important thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/less_important/thesaurus/antonyms
ChicagoSmart Define. 2013. "less important thesaurus" https://smartdefine.org/less_important/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2013, less important thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/less_important/thesaurus/antonyms>.
MLASmart Define. "less important thesaurus" 19 May 2013. Web. 24 September 2026. <https://smartdefine.org/less_important/thesaurus/antonyms>