7
high-hearted(adjective, characteristic, temper, mindset)
7
hoity-toity(adjective, characteristic, temper, mindset)
7
light-headed(adjective, characteristic, temper, mindset)
7
light-minded(adjective, characteristic, temper, mindset)
7
lightheaded(adjective, characteristic, temper, mindset)
7
lightsome(adjective, characteristic, temper, mindset)
7
unthinking(adjective, characteristic, temper, mindset)
6
fast(adjective, characteristic, temper, mindset)
6
puerile(adjective, characteristic, temper, mindset)
6
shallow-hearted(adjective, characteristic, temper, mindset)
6
superficial(adjective, slight, detail, boring, unimportant)
6
unreflecting(adjective, characteristic, temper, mindset)
5
portable(adjective, light, slight, easy, thin)
4
flimsy(adjective, light, slight, easy, fine)
4
dunce(noun, person, simple, fool, innocent)
4
fluffy(adjective, light, slight, easy, thin)
4
fool(noun, person, simple, stupid, innocent)
4
mini
4
minor(adjective, unimportant, trivial, senseless, inconsequential)
4
shallow(adjective, slight, detail, trivial, ignorant)
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APASmart Define. (2015). lightweight thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lightweight/thesaurus/synonyms
ChicagoSmart Define. 2015. "lightweight thesaurus" https://smartdefine.org/lightweight/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lightweight thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lightweight/thesaurus/synonyms>.
MLASmart Define. "lightweight thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/lightweight/thesaurus/synonyms>