Main entry: clear, well-defined
Definition: accurately stated or described
Usage: a set of well-defined values
Antonyms: unclear, ill-defined
Definition: poorly stated or described
Main entry: chiseled, well-defined
Definition: having a clean and distinct outline as if precisely cut along the edges
Usage: a finely chiseled nose; well-defined features
Antonyms: indistinct
Definition: not clearly defined or easy to perceive or understand