99 entries under flimsy topic. ×

7
incredible(adjective, weak, great, poor, informal)
7
stingy(adjective, close, mean, light, slight)
7
tight(adjective, close, light, slight, fine)
6
dainty(adjective, light, weak, slight, easy)
6
deficient(adjective, close, light, slight, poor)
6
improbable(adjective, weak, great, poor, extraordinary)
6
thick(adjective, weak, great, poor, informal)
6
translucent(adjective, clear, light, fine, bright)
6
vapid(adjective, dull, weak, flat, boring)
5
questionable(adjective, weak, great, extraordinary, amazing)
4
bare(adjective, close, light, weak, slight)
4
paper-thin(adjective, fine, frail, shallow)
4
suspect(adjective, great, informal, extraordinary, unreasonable)
3
close(verb, adjective, decline, reduce, light)
3
frivolous(adjective, weak, soft, gentle, content)
3
infirm(adjective, light, weak, slight, delicate)
3
permeable(adjective, clear, fine, slim, shallow)
3
wafer-thin(adjective, light, fine, minute, tiny)
2
cardboard(adjective, frail, slim, insubstantial)
2
decrepit(adjective, light, weak, slight, delicate)
10 years ago|51k views|share |citing 
APASmart Define. (2016). thin thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thin/thesaurus/synonyms
ChicagoSmart Define. 2016. "thin thesaurus" https://smartdefine.org/thin/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, thin thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thin/thesaurus/synonyms>.
MLASmart Define. "thin thesaurus" 22 January 2016. Web. 22 September 2026. <https://smartdefine.org/thin/thesaurus/synonyms>