Determined vs Understood - What's the difference?

As adjectives the difference between determined and understood

is that determined is decided; resolute, possessing much determination while understood is of things which have been comprehended.

is that determined is (determine) while understood is (understand).

indicates comprehension on the part of the speaker.

(en adjective)

Decided; resolute, possessing much determination.

I'm determined to get a good grade in my exam.

(head)

(determine)

(en adjective)

Of things which have been comprehended.

(head)

(understand)