1. A competitive event or championship restricted to or designed for participants who are 18 years of age or older
She won the adult tournament in tennis last summer.
Ela venceu o torneio para adultos de tênis no verão passado.
2. A sporting or gaming competition organized specifically for mature participants, excluding minors or youth divisions
The adult tournament featured players from around the world.
O torneio para adultos contou com jogadores de todo o mundo.