What context can I use each word in?
Learn when and how to use these words with these examples!
unsustainable
Example
The company's production practices are unsustainable and harmful to the environment. [unsustainable: adjective]
Example
The current rate of deforestation is unsustainable and will lead to irreversible damage. [unsustainable: adjective]
unsound
Example
The politician's argument was unsound and lacked evidence to support their claims. [unsound: adjective]
Example
Investing in that company's stocks would be unsound due to their unstable financial history. [unsound: adjective]
Good things to know
Which word is more common?
Unsustainable is more commonly used than unsound in everyday language, especially in discussions about environmental sustainability. Unsound is more technical and may be less familiar to ESL learners.
What’s the difference in the tone of formality between unsustainable and unsound?
Both unsustainable and unsound are formal words, but unsustainable is more versatile and can be used in both formal and informal contexts, while unsound is more technical and may be more appropriate in formal or academic settings.
