burnt-out vs burned

burnt-out and burned both are adjectives.

Word	Noun	Adjective	Verb	Adverb
burnt-out	No	Yes	No	No
burned	No	Yes	No	No

As adjectives, burnt-out and burned are synonyms defined as:

Other synonyms of burnt-out include burned-out, burned-over, burnt.

burnt-out (adjective)	burned (adjective)
destroyed or badly damaged by fire	ruined by overcooking
exhausted as a result of longtime stress	destroyed or badly damaged by fire
inoperative as a result of heat or friction	treated by heating to a high temperature but below the melting or fusing point