Kanji 無 nothingness, none, ain't 窮 hard up, destitute, suffer Related words 永えい 久きゅう 永久 is a common word for 'eternity' or 'permanence', while 天壌無窮 is a literary yojijukugo with a grand, cosmic nuance often tied to imperial or divine eternity.
永えい 遠えん 永遠 is the standard word for 'eternity' in everyday and philosophical contexts; 天壌無窮 is a more formal, classical expression.
Etymology A yojijukugo composed of 天 (heaven), 壌 (earth), 無 (without), and 窮 (end), literally 'heaven and earth without end'. The phrase originates from classical Chinese and was adopted into Japanese, notably in the phrase 天壌無窮の神勅 (divine decree of eternal heaven and earth) associated with the Japanese imperial mythology.
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