她使用的绘画基础技巧明显暴露了她的业余水平。

Her ___amateurism was clearly shown in the basic painting techniques she used.

这个赛事坚持业余主义原则，拒绝任何职业选手参加。

The tournament insists on ___amateurism and excludes all professional players.

这场音乐会的表演充满了业余感，连基本的音准都没掌握好。

The concert performance was full of ___amateurism, lacking even basic pitch control.