General Antonyms:
* Flourish: To thrive and prosper.
* Prosper: To succeed and grow in wealth and happiness.
* Thrive: To grow and develop well.
* Abund: To be plentiful or abundant.
Antonyms based on specific usage:
* Starve: If "subsist" means to barely survive, the antonym would be to have an abundance of food and resources.
* Waste: If "subsist" means to use something sparingly, the antonym could be to squander or waste resources.
* Abundant: If "subsist" means to barely get by, the antonym would be to have a plentiful supply of something.
To find the most accurate antonym, you need to consider the specific context in which the word "subsist" is used.