criminal act; criminal conduct
A formal or legal term for an action that constitutes a crime. Used in legal contexts, news reports, and formal discussions.
His criminal acts were revealed at the trial.
This law targets specific criminal conduct.
犯罪 is the general term for 'crime', while 犯罪行為 specifically refers to the act or conduct itself.
違法行為 means 'illegal act' and is broader, including civil violations, whereas 犯罪行為 implies a criminal offense.
Compound of 犯罪 (crime) and 行為 (act, conduct).