adj. not professional; not engaged in a profession or engaging in as a profession or for gain; "the nonprofessional wives of his male colleagues"; "nonprofessional actors"

adj. lacking professional skill or expertise; "a very amateurish job"; "inexpert but conscientious efforts"; "an unskilled painting"

adj. lacking practical experience or training

adj. showing lack of art; "an artless translation"

adj. engaged in as a pastime; "an amateur painter"; "gained valuable experience in amateur theatricals"; "recreational golfers"; "reading matter that is both recreational and mentally stimulating"; "unpaid extras in the documentary"

adj. engaged in a profession or engaging in as a profession or means of livelihood; "the professional man or woman possesses distinctive qualifications"; "began her professional career after the Olympics"; "professional theater"; "professional football"; "a professional cook"; "professional actors and athletes"