Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
contentedness is a noun meaning "the state of being contented with your situation in life". It carries one recorded sense.
the state of being contented with your situation in life
“he relaxed in sleepy contentedness”
“they could read to their heart's content”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for contentedness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.