/ Dictionary / Index S seditionary: Meaning and Definition of Find definitions for: se•di•tion•ar•y Pronunciation: (si-dish'u-ner"ē), [key] — adj., n., pl. -ar•ies. —adj. of or pertaining to sedition; seditious. —n. one guilty of sedition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sedition seditious Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language