nián​yān​dài​yuǎn

time immemorial

Senses

年湮代远/ 年湮代遠 nián​yān​dài​yuǎn (also nián​yīn​dài​yuǎn) time immemorial

(literary) an extremely long time ago; through the passage of many years

References

synonym 年湮代远/年湮代遠 年深日久/年深日久
synonym 年深日久/年深日久 年湮代远/年湮代遠