stubborn

adj 1: tenaciously unwilling or marked by tenacious unwillingness

to yield [ant: {docile}]

2: (med) not responding to treatment; "a stubborn infection";

"a refractory case of acne" [syn: {refractory}]

3: difficult to treat or deal with; "stubborn rust stains"; "a

stubborn case of acne"

4: persisting in a reactionary stand [syn: {obstinate}, {unregenerate}]