worn-out vs dog-tired

worn-out and dog-tired both are adjectives.

Word	Noun	Adjective	Verb	Adverb
worn-out	No	Yes	No	No
dog-tired	No	Yes	No	No

As adjectives, worn-out and dog-tired are synonyms defined as:

worn-out and dog-tired: drained of energy or effectiveness; extremely tired; completely exhausted

Other synonyms of worn-out include exhausted, fagged, fatigued, gone, played out, spent, washed-out, worn out.

worn-out (adjective)	dog-tired (adjective)
drained of energy or effectiveness; extremely tired; completely exhausted	drained of energy or effectiveness; extremely tired; completely exhausted
used until no longer useful