214 entries under adjective topic. ×

5
blurred(weak, pale, faded)
5
imponderable(hard, knowledge, faint)
5
trivial(hard, faint, littleness)
5
undetectable(hard, faint, subtle, unremarkable)
4
dull(weak, soft, gentle, low)
4
ephemeral(hard, faint, subtle, unremarkable)
4
fine(hard, slight, thin, faint)
4
hazy(weak, pale, faded)
4
low(calm, dull, quiet, weak)
4
minuscule(soft, gentle, minute, tiny)
4
pale(dull, weak, soft, gentle)
4
shadowy(hard, weak, faint, pale)
4
unhearable(quiet, soft, low)
3
blurry
3
covert
3
even
3
indefinite
3
little(amount, size)
3
moderate(calm, dull, quiet, weak)
3
muffled(dull, quiet, weak, soft)
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APASmart Define. (2015). imperceptible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/imperceptible/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperceptible thesaurus" https://smartdefine.org/imperceptible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, imperceptible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/imperceptible/thesaurus/synonyms>.
MLASmart Define. "imperceptible thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/imperceptible/thesaurus/synonyms>