unsustainable

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unsustainable

adjective more unsustainable · most unsustainable

Not sustainable. You don't have to be Einstein to work out that this level of government subsidy is unsustainable.

noun unsustainables

Something that cannot be sustained.

Thesaurus

Closest in meaning: unviable, unfeasible, indefensible, untenable, impossible, unsupportable, unworkable, unreasonable, nonviable, unmanageable, unacceptable, insupportable, intolerable, unbearable, unlikely, insufferable

Translations

Every language

adj Not sustainable

Español	insostenible
Português	insustentável
Français	pas viable, non viable, pas tenable, intenable, insoutenable
Deutsch	unhaltbar
Italiano	insostenibile

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MLA

"unsustainable." Wiktionary, via Micwyn, micwyn.com/word/unsustainable. Accessed 6 Nov. 2026.

APA

unsustainable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/unsustainable

Chicago

"unsustainable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/unsustainable.

BibTeX

@misc{unsustainable_2026,
  title = {unsustainable},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/unsustainable},
  urldate = {2026-11-06}
}