unvaned
/ʌnˈveɪnd/
adjective
- Not having a vane or vanes; lacking a flat surface that catches wind or fluid flow, as on a weather vane, propeller, or turbine.
- The arrow was unvaned, so it wobbled in flight instead of flying straight.
- The old weathercock sat unvaned on the barn roof, its arrow missing.
- Engineers tested an unvaned turbine blade to see how it performed in low wind.