50 entries under light topic. ×

16
skinny(adjective, dull, slight, fine)
12
scraggy(adjective, dull, slight, thin)
10
thin(adjective, dull, slight, fine)
9
gaunt(adjective, dull, slight, thin)
8
gangly(adjective, dull, slight, fine)
8
spare(adjective, dull, slight, fine)
7
lanky(adjective, dull, slight, thin)
6
gangling(adjective, dull, slight, fine)
6
lank(adjective, dull, slight, fine)
6
lean(adjective, dull, slight, thin)
6
lightweight(adjective, feature, characteristic, dull)
6
skeletal(adjective, slight, thin, delicate)
5
feathery(adjective, feature, characteristic, weight)
5
puny(adjective, dull, slight, fine)
5
spindly(adjective, dull, slight, fine)
5
twiggy(adjective, dull, slight, fine)
5
weightless(adjective, feature, characteristic, weight)
4
featherlight(adjective, feature, characteristic, weight)
4
pinched(adjective, dull, slight, fine)
4
rawboned(dull, slight, fine, thin)
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APASmart Define. (2015). underweight thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/underweight/thesaurus/synonyms
ChicagoSmart Define. 2015. "underweight thesaurus" https://smartdefine.org/underweight/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, underweight thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/underweight/thesaurus/synonyms>.
MLASmart Define. "underweight thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/underweight/thesaurus/synonyms>