Sui Juris

[Latin “of one's own right; independent”]

One who has all the rights to which a freemen is entitled; one who is not under the power of another, as a slave, a minor, and the like.

- Bouvier's Law Dictionary (1856 Ed.)

Of his own right; possessing full social and civil rights; not under any legal disability, or the power of another, or guardianship. Having capacity to manage one's own affairs; not under legal disability to act for one's self.

- A Dictionary of Law (1891 Ed.)

1. Of full age and capacity.

2. Possessing full social and civil rights.

3.Roman law. Of or relating to anyone of any age, male or female, not in the postestas of another, and therefore capable of owning property and enjoying private-law rights.

• As a status, it was not relevant to public law.

- Black's Law Dictionary (Eighth Ed. 2004)

1: having full legal capacity to act on one's own behalf : not subject to the authority of another

2: qualified to enjoy full rights of citizenship (as of holding public office or serving on a jury)

- Merriam-Webster