na-adjective, noun
great happiness; abundant fortune
Describes a state of deep happiness or being blessed with good fortune. Often used in formal or literary contexts, and in set phrases like 多幸感 (feeling of great happiness).
彼は多幸な人生を送った。
He lived a life of great happiness.
新年が皆様にとって多幸な年でありますように。
May the new year be a year of abundant happiness for everyone.