9
narrow
8
close(adjective, near, very narrow)
7
hair(noun, margin)
4
bit(noun, margin)
4
hairsbreadth(noun, margin)
4
hazardous(adjective, very narrow)
4
near(adjective, near)
3
inch
3
whisker(noun, slight)
2
ace
2
fraction(noun, margin, minute distance)
2
touchy
1
adjacent(adjective, near)
1
beard
1
bowshot
1
brief span
1
by(adjective, near)
1
close quarters
1
close range
1
closeness
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APASmart Define. (2015). hairbreadth thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/hairbreadth/thesaurus/synonyms
ChicagoSmart Define. 2015. "hairbreadth thesaurus" https://smartdefine.org/hairbreadth/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, hairbreadth thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/hairbreadth/thesaurus/synonyms>.
MLASmart Define. "hairbreadth thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/hairbreadth/thesaurus/synonyms>