3
shadowy(adjective, weak, obscure, rough, dark)
3
unexplainable(adjective, obscure, strange, odd, mysterious)
3
unreadable(adjective, incoherent, unfathomable, understandable, incomprehensible)
2
abstruse(adjective, hard, obscure, difficult, delicate)
2
amphibological(adjective, obscure, rough, difficult, uncertain)
2
bleary(adjective, unclear, hazy, indistinct, indistinguishable)
2
blurry
2
broken
2
deep(adjective, hard, obscure, delicate, complex)
2
faint(adjective, unclear, hazy, indistinct, indistinguishable)
2
garbled
2
hidden(adjective, hard, obscure, solid, dark)
2
inaudible
2
indefinite(adjective, obscure, rough, uncertain, doubtful)
2
indeterminate(adjective, obscure, uncertain, vague, unclear)
2
indiscernible(adjective, solid, unclear, dense, hazy)
2
indistinguishable(adjective, confused, unclear, hazy, rambling)
2
meaningless(adjective, understandable)
2
mixed-up
2
muffled
10 years ago|11k views|share |citing 
APASmart Define. (2016). unintelligible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unintelligible/thesaurus/synonyms
ChicagoSmart Define. 2016. "unintelligible thesaurus" https://smartdefine.org/unintelligible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unintelligible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unintelligible/thesaurus/synonyms>.
MLASmart Define. "unintelligible thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/unintelligible/thesaurus/synonyms>