"illegitimate" in the noun sense
1. bastard, by-blow, love child, illegitimate child, illegitimate, whoreson
the illegitimate offspring of unmarried parents
"illegitimate" in the adjective sense
1. illegitimate, illicit, outlaw, outlawed, unlawful
contrary to or forbidden by law
"an illegitimate seizure of power"
"illicit trade"
"an outlaw strike"
"unlawful measures"
2. illegitimate
of marriages and offspring not recognized as lawful
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License