From Longman Dictionary of Contemporary Englishguiltlessguilt‧less /ˈɡɪltləs/ adjective formal INNOCENT/NOT GUILTYnot responsible for a crime or for having done something wrong SYN innocent
Examples from the Corpus
guiltless• The United States itself would not be guiltless.• The guiltless freedom and profound family security that Maddy and Patrick enjoy speak eloquently for extended family.• The three men, determined, though guiltless, to die well, had all put on their Sunday suits. 