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4
inscrutable(adjective, blank, unfathomable, enigmatic)
1
poker-faced(adjective, difficult, impassive, ambiguous)
10 years ago|6.9k views|share |citing 
APASmart Define. (2016). unreadable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unreadable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unreadable thesaurus" https://smartdefine.org/unreadable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, unreadable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unreadable/thesaurus/synonyms>.
MLASmart Define. "unreadable thesaurus" 10 March 2016. Web. 21 September 2026. <https://smartdefine.org/unreadable/thesaurus/synonyms>