But sullen discontent sat lowering on her face. — Dryden.
To be dark, gloomy, and threatening, as clouds; to be covered with dark and threatening clouds, as the sky; to show threatening signs of approach, as a tempest
To-morrow it will hie on far behests;.
{f} be overcast, be dark and threatening (sky, etc.); frown, scowl; make lower; become lower or less