noun
forever and ever; for all eternity
A literary or formal expression meaning 'for generations without end', often used in poetic, religious, or solemn contexts. Not common in everyday speech.
この愛は世々限り無く続くだろう。
This love will continue forever and ever.
世々限り無く語り継がれる物語。
A tale passed down for all eternity.
末永く means 'for a long time to come' and is used in well-wishing (e.g., 末永くお幸せに). 世々限り無く is more solemn and implies an unending span across ages.
Standard kanji spelling using 々 for iteration and 無く for the negative adverbial form.
Variant without the iteration mark; less common but still encountered.
Variant with なく in kana; slightly more modern feel.
Variant with both iteration mark omitted and kana なく.
Compound of 世々 (yoyo, 'generations, ages') + 限り無く (kagirinaku, 'without limit'). The exact historical derivation is uncertain, but it follows a classical pattern of adverbial phrases expressing perpetuity.