Origin: Latin suffix -able
Unbeatable has 4 different meanings across 1 category:
Someone or something that can't be beaten
"The local bakery's cinnamon rolls are so delicious that they remain unbeatable in our entire neighborhood."
incapable of being overcome or subdued
"an invincible army"
"her invincible spirit"
That cannot be beaten, defeated or overcome
"The underdog team secured an unbeatable victory by scoring a stunning last-minute goal that left their opponents stunned into silence."