single word requests - What is the adjective equivalent to "content"?

Here is the list of synonyms for content from Oxford American Writer's Thesaurus.

Contented, satisfied, pleased, gratified, fulfilled, happy, cheerful, glad; unworried, untroubled, at ease, at peace, tranquil, serene.

You can't say contending day. Contending is an adjective and means competing.

The debate continued between the contending parties.