1. performing work tasks with little enthusiasm, interest, or energy; doing one's job in a half-hearted manner
He was working unenthusiastically on the project, clearly uninterested in the outcome.
Ele estava trabalhando sem entusiasmo no projeto, claramente desinteressado no resultado.
2. completing work duties without passion or motivation
The team was working unenthusiastically after hearing about the budget cuts.
A equipe estava trabalhando com falta de entusiasmo após ouvir sobre os cortes orçamentários.