The term "de lineated" refers to something that has been outlined or represented in clear detail. The antonyms for this word would be "obscure," "vague," or "ambiguous." When something is not clear, it can be difficult to understand or interpret its meaning. Other antonyms could include "unspecified" or "unsure," which suggests that the details are unknown or uncertain. Similarly, "generic" or "indistinct" could be used to describe a lack of specific details or characteristics. If something is not clearly defined or explained, it is harder to communicate effectively about it or to make informed decisions based upon it.