unruffled

形容词 unruffled:

1. free from emotional agitation or nervous tension- Anthony Trollope
   同义词：unflurried, unflustered, unperturbed
2. (of a body of water) free from disturbance by heavy waves
   同义词：placid, quiet, still, tranquil, smooth

1. She spoke with unruffled calm.
   她从容不迫地讲话。
2. He remained unruffled by the charges.
   他受到这些指控仍处之泰然。