superannuated vs outdated

superannuated and outdated both are adjectives.

Word	Noun	Adjective	Verb	Adverb
superannuated	No	Yes	No	No
outdated	No	Yes	No	No

As adjectives, superannuated and outdated are synonyms defined as:

Other synonyms of superannuated include obsolete, out-of-date.

superannuated (adjective)	outdated (adjective)
old; no longer valid or fashionable	old; no longer valid or fashionable
too old to be useful