noun, noun which may take the genitive case particle 'no', noun or participle which takes 'suru'
self-contained; self-sufficient; autonomous
Describes a system, person, or work that is complete in itself and does not rely on external elements. Often used in technical, philosophical, or literary contexts. The 'self-absorption' gloss is a rare, extended nuance.
この小説は一話ごとに自己完結している。
Each chapter of this novel is self-contained.
He lives a self-sufficient life without relying on others.