| Adj. | 1. | well-defined - having a clean and distinct outline as if precisely cut along the edges; "a finely chiseled nose"; "well-defined features" distinct - easy to perceive; especially clearly outlined; "a distinct flavor"; "a distinct odor of turpentine"; "a distinct outline"; "the ship appeared as a distinct silhouette"; "distinct fingerprints" |
| 2. | well-defined - accurately stated or described; "a set of well-defined values" ill-defined, unclear - poorly stated or described; "he confuses the reader with ill-defined terms and concepts" |