contentedly
Concise Oxford English Dictionary © 2008 Oxford University Press:
contented /kənˈtɛntɪd/
▶adjective feeling or expressing happiness or satisfaction.
■ willing to accept something; satisfied: I was never contented with half measures.
– derivatives
contentedly adverb,
contentedness noun.
contentedly adverb,
contentedness noun.
'contentedly' also found in these Oxford entries:

