10 entries under expression topic. ×

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beyond control(idiom, impossibility)
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closed at one end(idiom, dark)
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closed to(unaffected, unyielding, unbending, resistant)
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dead end
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impracticable unachievable(idiom, impossibility)
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leading nowhere
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out of reach(idiom, impossibility)
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tightly packed(adjective, solid, dense)
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without egress
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without exit
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APASmart Define. (2015). impassable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/impassable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassable thesaurus" https://smartdefine.org/impassable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, impassable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/impassable/thesaurus/synonyms>.
MLASmart Define. "impassable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/impassable/thesaurus/synonyms>