The difference between Sustainable and Untenable
When used as adjectives, sustainable means able to be sustained, whereas untenable means not able to be held, as of an opinion or position.
check bellow for the other definitions of Sustainable and Untenable
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Sustainable as an adjective:
Able to be sustained.
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Sustainable as an adjective:
Able to be produced or sustained for an indefinite period without damaging the environment, or without depleting a resource; renewable.
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Untenable as an adjective:
Not able to be held, as of an opinion or position; unholdable, indefensible.
Examples:
"The theory of cold fusion was untenable."
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Untenable as an adjective:
Unfit for habitation