S: (adj) amateur, recreational, unpaid (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"
S: (adj) amateurish, amateur, inexpert, unskilled (lacking professional skill or expertise) "a very amateurish job"; "inexpert but conscientious efforts"; "an unskilled painting"