68 entries under adjective topic. ×

13
impracticable(unreasonable, possible, impossible, out-of-the-way)
13
impractical(unreasonable, possible, impossible, unpractical)
13
unattainable(unreasonable, possible, inaccessible, impossible)
13
unworkable(unreasonable, possible, inaccessible, impossible)
10
impossible(unreasonable, possible, inaccessible, unreachable)
10
unachievable
6
infeasible(unreasonable, inaccessible, impossible, unreachable)
6
undoable
5
unfeasible(unreasonable, impossible, out-of-the-way, unapproachable)
5
unrealistic(unreasonable, unpractical, unviable)
4
absurd(unreasonable, impossible, unpractical, unfeasible)
4
hopeless
4
inaccessible(out, impossible)
4
quixotic(unreasonable, unpractical, unviable)
4
visionary(unreasonable, impossible, unpractical, unfeasible)
3
inconceivable
3
insurmountable
3
preposterous
3
unreasonable(impossible, unpractical, unfeasible, unviable)
3
unthinkable(possible, impossible)
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APASmart Define. (2015). unrealizable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unrealizable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrealizable thesaurus" https://smartdefine.org/unrealizable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unrealizable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unrealizable/thesaurus/synonyms>.
MLASmart Define. "unrealizable thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/unrealizable/thesaurus/synonyms>