12
abstract(adjective, unreasonable, theoretical, unviable)
12
impractical(adjective, unreasonable, useless, unfit, unviable)
8
visionary(adjective, unreasonable, impractical, unviable)
7
idealistic(adjective, unreasonable, impractical, unviable)
7
impracticable(adjective, unreasonable, useless, unfit, impractical)
6
conceptual(adjective, theoretical)
6
theoretical(adjective, unreasonable, unviable)
6
unrealistic(adjective, unreasonable, unviable)
5
hypothetical(adjective, theoretical)
5
ideal(adjective, theoretical)
5
quixotic(adjective, unreasonable, impractical, unviable)
5
speculative(adjective, unreasonable, unviable)
4
romantic(adjective, unreasonable, unviable)
4
transcendent
4
unserviceable(adjective, unreasonable, useless, unfit, unviable)
4
unusable(adjective, unreasonable, useless, unfit, unviable)
3
ideational
3
intellectual
3
notional
3
unworkable(adjective, unreasonable, unviable)
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APASmart Define. (2016). unpractical thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unpractical/thesaurus/synonyms
ChicagoSmart Define. 2016. "unpractical thesaurus" https://smartdefine.org/unpractical/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, unpractical thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unpractical/thesaurus/synonyms>.
MLASmart Define. "unpractical thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/unpractical/thesaurus/synonyms>