n. 1 layman, non-professional, tiro or tyro; dabbler, dilettante, bungler; Colloq US bush-leaguer When it comes to repairing cars, I'm a mere amateur
adj. 2 lay, non-professional, untrained; unpaid; dilettante, amateurish, unprofessional, unskilled, inexpert, unskilful, clumsy, mediocre, inferior, crude, bungling, second-rate; Colloq US bush-league The amateur theatre group's performance received excellent reviews These paintings are strictly amateur and totally without merit.