free and independent; unfettered independence
A literary yojijukugo expressing complete freedom and self-reliance, free from any external constraints. Rare in modern everyday language.
He started a new business with a spirit of unfettered independence.
独立 is the common word for independence; 不羈独立 adds the nuance of being unrestrained and free-spirited.
自由奔放 means free and uninhibited, often describing a person's behavior; 不羈独立 emphasizes independence from external control.
A yojijukugo combining 不羈 (unrestrained, unfettered) and 独立 (independence). The exact historical derivation is uncertain, but it is a literary compound expressing the ideal of complete personal freedom.