Not represented accurately or precisely(adjective)
WordNet. Princeton University. 2010.
Use "undelineated" in a sentence
"All the days since are dark, undelineated and unfinished."
"In previous years Ashgabat's relations with Baku were distinctly cool, mainly due to a debt dispute and arguments about rights over energy reserves in the undelineated Caspian."
"It will also explain more clearly than a page of type could do, why the western and north-western coasts were known so early, whilst the eastern and southern shores remained undelineated until James Cook and Matthew Flinders sailed along them."