Unquenchable vs Thirsty - What's the difference?

As adjectives the difference between unquenchable and thirsty

is that unquenchable is that cannot be quenched while thirsty is needing to drink.

(en adjective)

That cannot be quenched .

:After running 12 miles in the hot sun his thirst appeared to be unquenchable .

(er)

Needing to drink.

After all that work I am really thirsty .

Causing thirst; giving one a need to drink.

Craving something.

I am thirsty for knowledge.

After the president left office, the nation was thirsty for change.

* bloodthirsty