noun, na-adjective, noun which may take the genitive case particle 'no'
Refers to a state of peace and calm, often on a large scale (e.g., world peace, peaceful era). Can be used as a noun or adjectivally with な or の.
世界の太平を願う。
I wish for world peace.
この国は長く太平な時代が続いている。
This country has enjoyed a long period of peace.
na-adjective, noun
Archaic usage, now mostly seen in the compound 太平楽 (たいへいらく) meaning 'carefree' or 'easygoing'. Not used independently in modern Japanese.
See also: 太平楽
「太平楽」という言葉に、のんきな様子が表れている。
The word 太平楽 conveys a carefree, happy-go-lucky attitude.
From Chinese 太平 (tàipíng), meaning 'great peace'. The kanji 太 means 'great' and 平 means 'peace' or 'flat'. The alternate spelling 泰平 uses 泰, which also means 'peaceful'.