noun
dismissal; firing; being relieved of a post
Formal or euphemistic term for being dismissed or relieved from an official position or duty. Often used in historical or bureaucratic contexts.
不正が発覚して、彼はお役御免となった。
When the misconduct came to light, he was dismissed from his post.
He was a shogunate official, but fell from power and was relieved of his duties.
noun
discarding; throwing away; becoming useless
Extended figurative use: something or someone is discarded as no longer needed or useful. Often carries a nuance of being cast aside.
古いパソコンはもうお役御免だ。
The old computer has outlived its usefulness.
その企画はお役御免になって、新しい案が採用された。
That project was scrapped and a new proposal was adopted.