/ Dictionary / Index S serious-minded: Meaning and Definition of Find definitions for: se•ri•ous-mind•ed Pronunciation: (sēr'ē-us-mīn'did), [key] — adj. characterized by seriousness of intention, purpose, thought, etc.; earnest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: serious-minded (Thesaurus) seriously seriplane Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language