Substantiated vs Validate - What's the difference?

As verbs the difference between substantiated and validate

is that substantiated is past tense of substantiate while validate is to render valid.

(head)

(substantiate)

(en-verb)

to verify something by supplying evidence; to authenticate or corroborate

to give material form or substance to something; to embody; to record in documents

(validat)

To render valid.

To check or prove the validity of; verify.

* disprove * invalidate