undelineated

/ˌʌndɪˈlɪniˌeɪtɪd/
adjective
  1. Not clearly described, outlined, or marked; vague or undefined.
    • The boundaries of the property remained undelineated, causing confusion among the neighbors.
    • The artist left the background undelineated, letting the viewer imagine the details.
    • Her role in the project was undelineated, so she wasn't sure what to do.
Antonyms
What does "undelineated" mean? | whatsthatwordmean | whatsthatwordmean