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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).
1. A seat across a boat on which a rower may sit.
2. A transverse strut in a canoe or other small boat.
1. Extending, lying, or passing across; transverse.
2. Eager to oppose, especially wrongly; perverse.
adv. & prep. Archaic
[Middle English thwerten, from thwert, across, from Old Norse thvert, neuter of thverr, transverse; see terkw- in Indo-European roots.]
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|Noun||1.||thwarter - someone who systematically obstructs some action that others want to take|
naysayer - someone with an aggressively negative attitude
stonewaller - one who stonewalls or refuses to answer or cooperate; someone who delays by lengthy speeches etc.