/ Dictionary / Index T thwart: Meaning and Definition of Find definitions for: thwart Pronunciation: (thwôrt), [key] — v.t. to oppose successfully; prevent from accomplishing a purpose. to frustrate or baffle (a plan, purpose, etc.). to cross. to extend across. —n. a seat across a boat, esp. one used by a rower. a transverse member spreading the gunwales of a canoe or the like. —adj. passing or lying crosswise or across; cross; transverse. perverse; obstinate. adverse; unfavorable. —prep., adv. across; athwart. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thwart (Thesaurus) thwack Thwing Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language