Definition of "unregarded"

Far out in the uncharted backwaters of the unfashionable end of the Western Spiral arm of the Galaxy lies a small unregarded yellow sun.

1979, Douglas Adams, The Hitchhiker's Guide to the Galaxy

The hotel was expensive but unregarded by noisy pop and film stars and bond traders or any other section of London's beau monde.

2022, Ian McEwan, Lessons, page 557