overburnt
/ˌoʊvərˈbərnˌt/ or /ˌoʊvərˈbʌrnˌt/Definitions
1. adjective
burnt or scorched more than necessary, often due to carelessness or inexperience in a particular skill or activity.
“The novice chef managed to overburnt the first roast, but the second one turned out perfectly.”
2. noun
something that has been burnt or scorched more than necessary.
“The overburnt edges of the old photograph were almost impossible to restore.”