From WordNet (r) 3.0 (2006):
unruffled
adj 1: free from emotional agitation or nervous tension; "the
waiters were unflurried and good natured"; "with
contented mind and unruffled spirit"- Anthony Trollope
[syn: unflurried, unflustered, unperturbed,
unruffled]
2: (of a body of water) free from disturbance by heavy waves; "a
ribbon of sand between the angry sea and the placid bay";
"the quiet waters of a lagoon"; "a lake of tranquil blue
water reflecting a tranquil blue sky"; "a smooth channel
crossing"; "scarcely a ripple on the still water"; "unruffled
water" [syn: placid, quiet, still, tranquil,
smooth, unruffled]