1. having the smallest amount of knowledge, skill, or practice in a particular area; the superlative form indicating the lowest level of experience
She is the least experienced member of the team.
Ela é a membro menos experiente da equipe.
2. possessing the minimum level of training or familiarity with a subject compared to others
Among the candidates, he was the least experienced in project management.
Entre os candidatos, ele era o menos experiente em gestão de projetos.