/ Dictionary / Index T tyrannical: Meaning and Definition of Find definitions for: ty•ran•ni•cal Pronunciation: (ti-ran'i-kul, tī-), [key] — adj. of or characteristic of a tyrant. unjustly cruel, harsh, or severe; arbitrary or oppressive; despotic: a tyrannical ruler. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tyrannical (Thesaurus) tyramine tyrannicide Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language