balky

/ˈbɔki/

adjective

Reluctant; uncooperative.

he was trying to get his balky horse to move

stubborn,headstrong,wilful,unyielding,inflexible,unbending,intransigent,intractable,obdurate,mulish,stubborn as a mule,pig-headed,bull-headed,self-willed,strong-minded,strong-willed,contrary,perverse,recalcitrant,refractory,uncooperative,unmanageable,cross-grained,stiff-necked,stiff,rigid,steely,iron-willed,uncompromising,implacable,relentless,unrelenting,unpersuadable,immovable,unmalleable,unshakeable,inexorable,with one’s feet dug in,with one’s toes dug in,persistent,persevering,tenacious,pertinacious,dogged,single-minded,adamant,firm,steadfast,determined