Mul·ish a. Like a mule; sullen; stubborn. -- Mul*ish*ly, adv. -- Mul*ish*ness, n.
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mulishly
adv : in a stubborn unregenerate manner; "she remained stubbornly
in the same position" [syn: stubbornly, pig-headedly,
obdurately, obstinately, cussedly]