Outdated and Out

Outdated adjective - Having passed its time of use or usefulness.

Out is a synonym for outdated in old-fashioned topic. In some cases you can use "Out" instead an adjective "Outdated".

Out adjective - Fully committed to achieving a goal.

Outdated is a synonym for out in out of date topic. You can use "Outdated" instead the word "Out" as an adjective or an adverb, if it concerns topics such as no longer in fashion.