1. The quality or state of being unperturbed; calm composure and equanimity in the face of difficulties or disturbances
Her unperturbability during the crisis impressed everyone in the room.
Sua imperturbabilidade durante a crise impressionou a todos na sala.
2. The ability to remain unmoved, untroubled, or undisturbed by external events or emotions
The monk's unperturbability was a result of years of meditation practice.
A imperturbabilidade do monge era resultado de anos de prática meditativa.