1. the lack of excitement, eagerness, or interest in something
The absence of enthusiasm from the audience made the performer uncomfortable.
A falta de entusiasmo da plateia deixou o performer desconfortável.
2. a state of indifference or apathy toward a particular subject or activity
His absence of enthusiasm for the project was evident in his half-hearted efforts.
Sua falta de entusiasmo pelo projeto era evidente em seus esforços sem convicção.