• (n.) The state of being illegitimate; illegitimacy. • (n.) The act of illegitimating; bastardizing.
Il`le·git`i·ma'tion noun 1. The act of illegitimating; bastardizing. 2. The state of being illegitimate; illegitimacy. [ Obsolete] « Gardiner had performed his promise to the queen of getting her illegitimation taken off.» Bp. Burnet.