Answer: stubborn

AnswerCrossword Clue
STUBBORNObstinate
STUBBORNTough to budge
STUBBORNSet in one's ways
STUBBORNLike a mule
STUBBORNMulish
STUBBORNDetermined.
STUBBORNDogged or mulish
STUBBORNUnyielding
STUBBORNBullish?
stubbornHaving or showing dogged determination not to change one's attitude or position on something, esp. in spite of good arguments or reasons to do so
stubbornDifficult to move, remove, or cure
stubbornto be unyielding