system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does indestructible mean NOT destructible and invulnerable mean NOT vulnerable, but invaluable mean VERY valuable?

Makes a lot of sense now. thanks!
gpt
Indestructible means it cannot be destroyed.

Vulnerable comes from the Latin word "vulnus" which means "wound". So something invulnerable cannot be wounded.

Something that is invaluable cannot be valued, i.e. you cannot set a price on it. So invaluable literally means "priceless": there is no amount of money that is equal to the worth of the thing.