Synonyms|44Antonyms|9|Broader|0Narrower|0Related|72
5
unsustainable
1
abstract(unreasonable, unpractical)
1
depletion
1
impractical(adjective, unreasonable, unpractical, unfeasible, irresoluble)
1
inoperable(unreasonable, unpractical)
1
otherworldly(unreasonable, unpractical)
1
unfeasible(adjective, unreasonable, unpractical, irresoluble, irresolvable)
1
unworkable(adjective, unreasonable, unpractical, unfeasible, irresoluble)
0
absurd(unreasonable, unpractical, unfeasible, irresoluble, irresolvable)
0
chimerical(unreasonable, unpractical)
0
illogical(unreasonable, unpractical)
0
impossible(adjective, unreasonable, unpractical, unfeasible, irresoluble)
0
impracticable(unreasonable, unpractical, unfeasible, irresoluble, irresolvable)
0
improbable(unreasonable, unpractical)
0
imprudent
0
inapplicable(unreasonable, unpractical)
0
inefficacious(unreasonable, unpractical)
0
infeasible(adjective, unreasonable, unpractical, unfeasible, irresoluble)
0
insuperable
0
irresoluble
<123>
For more, visit Unviable on Power Thesaurus
13 years ago|445 views|share |citing 
APASmart Define. (2013). unviable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unviable/thesaurus/synonyms
ChicagoSmart Define. 2013. "unviable thesaurus" https://smartdefine.org/unviable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, unviable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unviable/thesaurus/synonyms>.
MLASmart Define. "unviable thesaurus" 28 June 2013. Web. 21 September 2026. <https://smartdefine.org/unviable/thesaurus/synonyms>