60 entries under slight topic. ×

5
twiggy(adjective, dull, light, fine)
4
pinched(adjective, dull, light, fine)
4
rawboned(dull, light, fine, thin)
4
starved(adjective, dull, light, fine)
4
undernourished(adjective, light, thin, delicate)
3
cadaverous(adjective, dull, light, fine)
3
haggard(adjective, dull, light, fine)
3
shadow(adjective, dull, light, fine)
3
slender(adjective, dull, thin, delicate)
3
slim(adjective, dull, light, fine)
3
wasted(adjective, dull, light, fine)
2
featherweight(dull, light, fine, thin)
2
fleshless(dull, thin, delicate, lifeless)
2
rangy(dull, light, fine, thin)
2
small(adjective, dull, thin, delicate)
1
all skin and bones(expression, idiom, dull, thin)
1
attenuate(dull, light, fine, thin)
1
attenuated(dull, light, fine, thin)
1
beanpole(dull, light, fine, thin)
1
beanstalk(dull, light, fine, thin)
11 years ago|8k views|share |citing 
APASmart Define. (2015). underweight thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/underweight/thesaurus/synonyms
ChicagoSmart Define. 2015. "underweight thesaurus" https://smartdefine.org/underweight/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, underweight thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underweight/thesaurus/synonyms>.
MLASmart Define. "underweight thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/underweight/thesaurus/synonyms>