guiltless

adjective
1
not having the unhappy feelings caused by knowing or thinking that you have done something wrong
بی‌گناه, بی‌تقصیر
2
free from blame or responsibility for doing something wrong or for something bad that has happened
بی‌گناه, بی‌تقصیر, بی‌خطا
If the couple are guiltless why did they offer a bribe?
synonym innocent(1)