Amateurish, unprofessional, unpolished, juvenile.
Of inferior quality.
A professional sports association at the lower levels of minor league organization.
A low-ranking or inferior level among groups, professions, organizations, etc.
Amateur, untrained; incompetent.
Dishonest, unscrupulous.
Ineptly built or operated; makeshift.
A type of drill operated by means of compressed air.
An amateur; an untrained or incompetent person.
A shyster or con artist; a gambler who cheats; a generally dishonest or reprehensible person.