85 entries under adjective topic. ×

16
important(characteristic, influence, importance, significance)
13
heavy(characteristic, importance, significance, weight)
12
big(characteristic, influence, importance, weight)
11
major(characteristic, influence, importance, significance)
9
heavyweight(characteristic, influence, importance, weight)
9
significant(characteristic, influence, importance, significance)
8
considerable(characteristic, importance, significance, weight)
7
focus(noun, characteristic, influence, importance)
7
consequential(characteristic, influence, importance)
6
weighty(characteristic, weight, heaviness)
5
hefty(characteristic, weight, heaviness)
5
useful(characteristic, influence, importance)
4
difficult(characteristic, importance, significance)
4
hard(characteristic, importance, significance)
4
meaningful(characteristic, importance, significance)
4
serious(characteristic, importance, significance)
4
tough(characteristic, importance, significance)
3
abundant(characteristic, weight, heaviness)
3
beefy(characteristic, weight, heaviness)
3
bulky(characteristic, weight, heaviness)
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APASmart Define. (2015). lightweight thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lightweight/thesaurus/antonyms
ChicagoSmart Define. 2015. "lightweight thesaurus" https://smartdefine.org/lightweight/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, lightweight thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lightweight/thesaurus/antonyms>.
MLASmart Define. "lightweight thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/lightweight/thesaurus/antonyms>