Difference between Selfless and Unselfish

What is the difference between Selfless and Unselfish?

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

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