thwarter

Noun

thwart=er

WORDNET DICTIONARY

thwarter(n = noun.person) obstructer, obstructionist, obstructor, resister - someone who systematically obstructs some action that others want to take;

is a kind of controversialist, disputant, eristic

has particulars: naysayer, stonewaller

Derived form verb thwart₁

thwarter, n.

A disease in sheep, indicated by shaking, trembling, or convulsive motions. [1913 Webster]