not a member of or trained in a specific profession.

Sports . not offering or engaged in for payment or a monetary prize; amateur

a nonprofessional league; a nonprofessional player.

a person who is not a professional.

an amateur athlete.

noun

dabbler , dilettante , smatterer , uninitiate , amateur , laic , laity , layman , layperson , laywoman , tyro

adjective

dilettante , dilettantish , unprofessional , unskilled , unskillful , amateur , lay