unperturbed

/ˌʌnpərˈtɜrbd/
adjective
  1. Not worried, upset, or disturbed; calm and composed.
    • The cat sat unperturbed on the windowsill while the dog barked wildly outside.
    • Even when the fire alarm went off, she remained unperturbed and finished her sentence.
    • He was unperturbed by the criticism and continued with his plan.
What does "unperturbed" mean? | whatsthatwordmean | whatsthatwordmean