lawful

a. 1. Conformable to law; allowed by law; legitimate; competent. [ 1913 Webster ]

2. Constituted or authorized by law; rightful; as, the lawful owner of lands. [ 1913 Webster ]

Lawful age, the age when the law recognizes one's right of independent action; majority; -- generally the age of twenty-one years. Also called legal age or age of majority. [ 1913 Webster +PJC ]

☞ In some of the States, and for some purposes, a woman attains lawful age at eighteen. Abbott.

Syn. -- Legal; constitutional; allowable; regular; rightful. -- Lawful, Legal. Lawful means conformable to the principle, spirit, or essence of the law, and is applicable to moral as well as juridical law. Legal means conformable to the letter or rules of the law as it is administered in the courts; conformable to juridical law. Legal is often used as antithetical to equitable, but lawful is seldom used in that sense.

-- Law"ful*ly, adv. -- Law"ful*ness, n. [ 1913 Webster ]