Entry 2 senses Webster, 1913 Wrongdoer /rông'-do͞o'-ẽr/ · Wrong·do·er · IPA /rˈɔŋdˈuːər/ 01 n. One who injures another, or who does wrong. 1. One who injures another, or who does wrong. 2. One who commits a tort or trespass; a trespasser; a tort feasor.(Law)