— unruffledness , n.
/un ruf"euhld/ , adj.
1. calm; not emotionally upset or agitated; steady; unflustered: He became all excited, but she remained unruffled.
2. not ruffled, as a garment; smooth.
[ 1650-60; UN- 1 + RUFFLE + -ED 2 ]
Syn. 1. unperturbed, tranquil, serene, imperturbable, cool, composed, peaceful, undisturbed.