| illegal(adjective, law, wrong, corrupt, vicious) |
| illicit(adjective, law, irregular, unwarranted, legal) |
| unlawful(adjective, law, wrong, corrupt, vicious) |
| spurious(adjective, law, fake, deception, false) |
| wrongful(adjective, law, evil, extreme, irregular) |
| bastard(noun, adjective, law, fake, deception) |
| criminal(adjective, wrong, irregular, unwarranted, illegal) |
| unauthorized(adjective, legal, illegal, permitted, sanctioned) |
| lawless(adjective, law, wrong, irregular, unwarranted) |
| misbegotten(adjective, law, inferior, kin, legal) |
| outlawed(adjective, law, crimes) |
| natural(adjective, law, inferior, kin, bastardy) |
| supposititious(adjective, deception, legal, undueness, bastardy) |
| fatherless(adjective, bastardy) |
| felonious(adjective, wrong, irregular, senseless, unwarranted) |
| improper(adjective, unreasonable, dishonest, extreme, stiff) |
| invalid(adjective, legal) |
| outlaw |
| false(adjective, fake, bogus, undueness) |
| illegitimate child(noun, expression, idiom) |