guiltiest
guil-ti-est
adjective
Feeling or appearing to have the most responsibility for a wrong act or offence.
"He had the guiltiest look in the room."
Thesaurus
Synonyms: punishable, at fault, culpable, criminal, blamable, finable, guilty, blameful, censurable, guilt-ridden, fineable, blameable
Antonyms: clean-handed, guiltless, innocent