32 entries under thin topic. ×

21
indistinct(adjective, dull, hard, weak, soft)
15
faint(adjective, calm, dull, quiet, weak)
14
slight(adjective, calm, dull, hard, weak)
10
subtle(adjective, hard, slight, fine)
8
inconspicuous(adjective, hard, slight, fine)
4
fine(adjective, hard, slight, faint)
4
tenuous(weak, slight, fine, pale)
3
negligible(adjective, slight, fine, short)
3
quiet(adjective, calm, dull, weak, smooth)
2
ethereal(adjective, slight, fine, insubstantial)
1
delicate(adjective, calm, dull, quiet, weak)
0
attenuate(slight, fine)
0
attenuated(slight, fine)
0
deep(weak, slight, fine, pale)
0
discriminating(slight, fine)
0
exquisite(slight, fine)
0
finespun(slight, fine)
0
hairline(slight, fine)
0
hairsplitting(slight, fine)
0
illusive(slight, fine)
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APASmart Define. (2015). imperceptible thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/imperceptible/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperceptible thesaurus" https://smartdefine.org/imperceptible/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, imperceptible thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/imperceptible/thesaurus/synonyms>.
MLASmart Define. "imperceptible thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/imperceptible/thesaurus/synonyms>