35 entries under heaviness topic. ×

13
heavy(adjective, characteristic, importance, significance, weight)
12
big(adjective, characteristic, influence, importance, weight)
9
heavyweight(adjective, characteristic, influence, importance, weight)
8
considerable(adjective, characteristic, importance, significance, weight)
6
weighty(adjective, characteristic, weight)
5
hefty(adjective, characteristic, weight)
3
abundant(adjective, characteristic, weight)
3
beefy(adjective, characteristic, weight)
3
bulky(adjective, characteristic, weight)
3
burdensome(adjective, characteristic, weight)
3
chunky(adjective, characteristic, weight)
3
corpulent(adjective, characteristic, weight)
3
cumbersome(adjective, characteristic, weight)
3
huge(adjective, characteristic, weight)
3
large(adjective, characteristic, weight)
3
ponderous(adjective, characteristic, weight)
2
ample(adjective, characteristic, weight)
2
built(adjective, characteristic, weight)
2
copious(adjective, characteristic, weight)
2
cumbrous(adjective, characteristic, weight)
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APASmart Define. (2015). lightweight thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/lightweight/thesaurus/antonyms
ChicagoSmart Define. 2015. "lightweight thesaurus" https://smartdefine.org/lightweight/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2015, lightweight thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/lightweight/thesaurus/antonyms>.
MLASmart Define. "lightweight thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/lightweight/thesaurus/antonyms>