1
germinal
1
glacial
1
gloomy
1
granular
1
homoeopathic
1
imperceivable(adjective, cold, indifferent, unresponsive, numb)
1
imperceptibly
1
imprecise
1
incognizable
1
incognoscible
1
inconsequential(adjective, slight, short, insignificant, insufficient)
1
infrared
1
infrequent
1
insufficient(adjective, soft, slight, gentle, short)
1
lean
1
lenient(adjective, calm, dull, quiet, weak)
1
less
1
limited
1
low-pitched(adjective, calm, dull, weak, soft)
1
meager
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APASmart Define. (2015). imperceptible thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/imperceptible/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperceptible thesaurus" https://smartdefine.org/imperceptible/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, imperceptible thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/imperceptible/thesaurus/synonyms>.
MLASmart Define. "imperceptible thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/imperceptible/thesaurus/synonyms>