Synonyms|111Antonyms|43|Broader|0Narrower|0Related|224
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illusory(adjective, perfect, ideal, imaginary, lofty)
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imaginary(adjective, perfect, ideal, lofty, supreme)
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impracticable unachievable(expression, idiom, impossibility)
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inapproachable(adjective, inaccessible)
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ineffectual
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innavigable
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intolerable
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irresoluble(adjective, irresolvable)
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irresolvable(adjective, irresoluble)
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lofty(adjective, perfect, ideal, imaginary, supreme)
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model
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no go(expression, unreasonable, useless, absurd, unrealistic)
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not on(verb, expression, phrasal verb)
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not possible(expression, idiom)
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not practical(expression, idiom)
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not viable(expression, idiom)
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out of reach(expression, idiom, impossibility)
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perfect
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pie-in-the-sky
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pie in the sky(expression, idiom, ideal, imaginary, lofty)
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APASmart Define. (2015). unfeasible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unfeasible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfeasible thesaurus" https://smartdefine.org/unfeasible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unfeasible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unfeasible/thesaurus/synonyms>.
MLASmart Define. "unfeasible thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/unfeasible/thesaurus/synonyms>