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tr.v. thwart·ed, thwart·ing, thwarts 1. To prevent the occurrence, realization, or attainment of: They thwarted her plans. 2. To oppose and defeat the efforts, plans, or ambitions of (someone). n. 1. A seat across a boat on which a rower may sit. 2. A transverse strut in a canoe or other small boat. adj. 1. Extending, lying, or passing across; transverse. 2. Eager to oppose, especially wrongly; perverse. adv. & prep. Archaic Athwart; across. [Middle English thwerten, from thwert, across, from Old Norse thvert, neuter of thverr, transverse; see terkw- in the Appendix of Indo-European roots.] thwarter n. thwartly adv. |
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