| bastard | illegitimate, spurious, unauthorized |
| false | illegitimate, bastard |
| indirectly | wrongfully, unjustly, illegitimately |
| misbegot | misbegotten, illegitimate, bastard |
| misbegotten | illegitimate, bastard |
| miscreate | wrongly created, illegitimate |
| sinister | illegitimate, erroneous, irregular |
| unfathered | unnaturally conceived, illegitimate |
| unnaturally | illegitimately, against normal practice |