/ Dictionary / Index S sobersides: Meaning and Definition of Find definitions for: so•ber•sides Pronunciation: (sō'bur-sīdz"), [key] — pl. -sides. a humorless or habitually serious person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sobersides (Thesaurus) sobersided Sobhuza II Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language