The term "asteroid" is somewhat ill-defined.

The term has become somewhat ill-defined, and as a result is much less used nowadays than it was perhaps 30 or more years ago.

The Vale is an east-north-east trending tract of low ground of somewhat ill-defined area.

But the charity's role continues to be somewhat ill-defined.

The dividing line between the two, while somewhat ill-defined, is in the vicinity of 50 eV energy loss.

Gray's origins are somewhat ill-defined; different sources alternate...

Merlin possessed somewhat ill-defined but reputedly powerful magical abilities.

(226) The doctrine remained, however, somewhat ill-defined and uncertain in scope, as different courts applied it in different circumstances, sometimes without refined analysis.

The boundaries of the modern neighborhood of Fort Point are somewhat ill-defined.

Lacus Somniorum is an irregular feature with complex, somewhat ill-defined borders.