1. Plural of amateurism; the practice, condition, or quality of being an amateur rather than a professional.
Usage: Often used in sports contexts to refer to the status of competing without payment.; Can also refer to the characteristic traits or behaviors typical of amateurs, such as lack of skill or polish.
2. Instances or examples of amateurish work, mistakes, or conduct; amateur-like qualities or performances.
Usage: Informal usage; often used critically to describe poor execution or lack of polish.

Examples

• The Olympic committee maintains strict rules about amateurisms to preserve fair competition.
• His film was full of amateurisms—poor lighting, shaky camera work, and awkward dialogue.
• Despite the amateurisms in their performance, the band showed real potential.
• The coach criticized the team's amateurisms, particularly their sloppy passing and missed assignments.
• She worked hard to eliminate the amateurisms from her writing style.
• The production suffered from numerous amateurisms that detracted from the overall quality.