Quiet
Calm, Leisurely, Easy
adjective, adverb
Leisure with more leisure added on? That's a really quiet and leisurely life you've got going on!
ゆうゆう
The reading is just the on'yomi readings (which you learned with the kanji) twice in a row.
退職後は田舎で悠々と暮らしたいな。
After retirement I want to live a quiet life in the countryside.