vajaavaltainen

Etymology
🇰🇲

Noun

 * 1)  An incompetent person.

Usage notes
In Finnish legislation an incompetent person is defined as a person under 18 years of age (minor) or a person who has attained the age of 18 years (adult) but who has been declared incompetent.

Adjective

 * 1)  Incompetent.