41 entries under adjective topic. ×

34
invisible(hidden, unable)
13
undetectable
11
dark(clear, light, clean, lack)
10
hidden
8
concealed
8
secret
6
imperceptible
5
obscure(cloudy, shadowy)
5
inconspicuous
5
unseeable
4
impalpable
4
impenetrable
4
indiscernible
4
vague
3
absent
3
indistinct
2
ambiguous
1
baffling
1
buried
1
inappreciable
<123>
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APASmart Define. (2016). visible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/visible/thesaurus/antonyms
ChicagoSmart Define. 2016. "visible thesaurus" https://smartdefine.org/visible/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, visible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/visible/thesaurus/antonyms>.
MLASmart Define. "visible thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/visible/thesaurus/antonyms>