Definition of complicit
: helping to commit a crime or do wrong in some way He was complicit in the cover-up.
Complicit
adjective UK /kəmˈplɪs.ɪt/ US /kəmˈplɪs.ɪt/
involved in or knowing about a crime or some activity that is wrong:
She was accused of being complicit in her husband's death.
https://en.oxforddictionaries.com/definition/complicit
Involved with others in an activity that is unlawful or morally wrong.
‘the careers of those complicit in the cover-up were blighted’