The Collaborative International Dictionary of English v.0.48:
Contented \Con*tent"ed\, a. Content; easy in mind; satisfied; quiet; willing. -- Con*tent"ed*ly, adv. -- Con*tent"ed*ness, n. [1913 Webster]WordNet (r) 3.0 (2006):
contentedly adv 1: with equanimity; "`I bought it,' she said contentedly"