1. A level or category of competition, performance, or skill that is below professional standards; work or participation by non-professionals
The video quality was amateur tier, with poor lighting and shaky camera work.
A qualidade do vídeo era de nível amador, com iluminação ruim e câmera instável.
2. Something that appears unprofessional, poorly executed, or of low quality
Their marketing campaign looked amateur tier compared to their competitors.
Sua campanha de marketing parecia amadora em comparação com a dos concorrentes.