- illegitimate⇄adj. 1. born of parents who are not married to each other; bastard.
(SYN) natural.
2. not according to the law or the rules; unauthorized; unwarranted.
3. not logical; not according to good usage; improper.
4. (Biology.) abnor - illegitimate⇄adv. illegitimately.
- illegitimate⇄illegitimate, adjective, verb, -mated,-mating.
- illegitimate⇄noun illegitimateness.
- illegitimate⇄noun illegitimation.
- illegitimate⇄v.t. to declare or pronounce illegitimate.