ILLEGIT'IMATE, adjective [See Legitimate.]
1. Unlawfully begotten; born out of wedlock; spurious; as an illegitimate son or daughter.
2. Unlawful; contrary to law.
3. Not genuine; not of genuine origin; as an illegitimate inference.
4. Not authorized by good usage; as an illegitimate word.
ILLEGIT'IMATE, verb transitive To render illegitimate; to prove to be born out of wedlock; to bastardize.