/ Dictionary / Index S semidarkness: Meaning and Definition of Find definitions for: sem•i•dark•ness Pronunciation: (sem"ē-därk'nis, sem"ī-), [key] — n. partial darkness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semidarkness (Thesaurus) semidaily semideify Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language