11
mysterious
10
impalpable(adjective, unsubstantial, intangible)
7
imperceptible
7
intangible(adjective, indefinite, obscured)
7
incorporeal
6
equivocal
5
disguised
5
ethereal
5
fictitious
5
formless
5
indefinite
5
indistinct
5
insubstantial
5
murky
5
obscure
5
unsubstantial
4
cryptic
4
diplomatic
3
elusive
3
in mind
<1234510>
10 years ago|3.4k views|share |citing 
APASmart Define. (2016). palpable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/palpable/thesaurus/antonyms
ChicagoSmart Define. 2016. "palpable thesaurus" https://smartdefine.org/palpable/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, palpable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/palpable/thesaurus/antonyms>.
MLASmart Define. "palpable thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/palpable/thesaurus/antonyms>