Difference between Unselfish and Selfless

What is the difference between Unselfish and Selfless?

Unselfish as an adjective is not selfish; selfless; generous; altruistic. while Selfless as an adjective is having, exhibiting or motivated by no concern for oneself but for others; unselfish.

We hope you now know whether to use Unselfish or Selfless in your sentence.