8
fine(adjective, slight, gentle, thin, exact)
7
nice(adjective, correct, slight, gentle, sharp)
6
subtle(adjective, quiet, slight, gentle, sharp)
5
delicate(adjective, weak, slight, gentle, sharp)
4
narrow
3
delicious(adjective, gentle, mild, subtle)
3
finespun(slight, gentle, fine, thin, mild)
3
hairsplitting(slight, sharp, fine, thin, exact)
3
refined(slight, sharp, fine, thin, exact)
2
acute(adjective, sharp, exact, discriminating)
2
attenuated(slight, fine, thin, weedy, sticker)
2
exact(adjective, sharp, discriminating)
2
filmy(gentle, mild, subtle)
2
hair
2
line
2
paper-thin
2
sharp(adjective, exact, discriminating)
2
thin(slight, fine, weedy, sticker, twiglike)
1
accurate
1
aerial(gentle, mild, subtle)
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APASmart Define. (2015). hairline thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hairline/thesaurus/synonyms
ChicagoSmart Define. 2015. "hairline thesaurus" https://smartdefine.org/hairline/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, hairline thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hairline/thesaurus/synonyms>.
MLASmart Define. "hairline thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/hairline/thesaurus/synonyms>