/ Dictionary / Index D darkly: Meaning and Definition of Find definitions for: dark•ly Pronunciation: (därk'lē), [key] — adv. so as to appear dark. vaguely; mysteriously. in a vaguely threatening or menacing manner: He hinted darkly that we had not heard the last of the matter. imperfectly; faintly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: darkly (Thesaurus) darkling beetle dark matter Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language