Defendable and Unsustainable
Opposite meaning words
Defendable
Defendable adjective - Capable of being defended with good reasoning against verbal attack.
Usage example: your thesis had better be defendable for the attacks are going to be withering
Unsustainable is an antonym for defendable.
Unsustainable
Cite this Source
Unsustainable and Defendable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/defendable/unsustainable
Defendable & Unsustainable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/defendable/unsustainable>.
Unsustainable or Defendable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/defendable/unsustainable.
Google Ngram Viewer shows how "defendable" and "unsustainable" have occurred on timeline