Unqualified

[Little_Girl]

Donald Trump.

[Justin Bieber]

When youre so high, youre not able to do anything seriously or go in public without people noticing youre high.

[Tracie Lynn]

An unqualified person does not have the qualifications needed for a particular job.

[Kai]

(of a person) not officially recognized as a practitioner of a particular profession or activity through having satisfied the relevant conditions or requirements.