1. The practice or condition of being an amateur; participation in an activity for pleasure rather than for financial gain or professional reasons
The Olympic athlete's commitment to amateurism was questioned when sponsorship deals were revealed.
O compromisso do atleta olímpico com o amadorismo foi questionado quando os acordos de patrocínio foram revelados.
2. Lack of professional skill or expertise; the quality of being inexperienced or unskilled
The film's amateurism was evident in its poor production quality.
O amadorismo do filme era evidente em sua qualidade de produção deficiente.
3. In sports, the principle or practice of competing without receiving payment or prize money
The rules of amateurism in tennis were relaxed in the 1980s.
As regras do amadorismo no tênis foram relaxadas na década de 1980.