15
illegible(adjective, unintelligible, badly written)
14
soul-crushing
12
indecipherable(adjective, incoherent, unfathomable, incomprehensible, enigmatic)
12
unclear(adjective, incoherent, incomprehensible, unintelligible, inarticulate)
9
undecipherable(adjective, illegible)
6
unintelligible(adjective, incoherent, unfathomable, understandable, incomprehensible)
5
confused
5
enigmatic(adjective, unfathomable, unintelligible, sphinx-like)
4
inscrutable(adjective, blank, hidden, unfathomable, enigmatic)
4
mysterious(adjective, unfathomable, enigmatic, unintelligible, sphinx-like)
3
cryptic(adjective, unintelligible)
3
garbled
3
obscure(adjective, incoherent, incomprehensible, inarticulate)
3
scrawled
3
stupid
2
ambiguous(adjective, incoherent, unfathomable, incomprehensible, enigmatic)
2
confusing(adjective, unintelligible)
2
cramped
2
deadpan(adjective, ambiguous, expressionless, unfathomable, enigmatic)
2
impenetrable(adjective, incoherent, unfathomable, incomprehensible, enigmatic)
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APASmart Define. (2016). unreadable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unreadable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unreadable thesaurus" https://smartdefine.org/unreadable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, unreadable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unreadable/thesaurus/synonyms>.
MLASmart Define. "unreadable thesaurus" 10 March 2016. Web. 20 September 2026. <https://smartdefine.org/unreadable/thesaurus/synonyms>