5
imperceptibly
5
latently(adverb, latently)
4
covertly(adverb, latently)
4
secretly(adverb, imperceptibly)
3
obscurely(adverb, imperceptibly)
2
clandestinely(adverb, latently)
2
hiddenly
2
inconspicuously(adverb, imperceptibly)
2
indiscernibly
2
sightlessly
2
undetectably(adverb, imperceptibly)
2
unseenly
1
barely
1
evanescently
1
impalpably
1
inappreciably
1
inaudibly
1
indistinctly(adverb, imperceptibly)
1
infinitesimally
1
intangibly
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APASmart Define. (2013). invisibly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/invisibly/thesaurus/synonyms
ChicagoSmart Define. 2013. "invisibly thesaurus" https://smartdefine.org/invisibly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, invisibly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/invisibly/thesaurus/synonyms>.
MLASmart Define. "invisibly thesaurus" 28 June 2013. Web. 20 September 2026. <https://smartdefine.org/invisibly/thesaurus/synonyms>