burnt vs burned-over

burnt and burned-over both are adjectives.

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

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

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

burnt (adjective)	burned-over (adjective)
ruined by overcooking	destroyed or badly damaged by fire
destroyed or badly damaged by fire
treated by heating to a high temperature but below the melting or fusing point