modified
backward, resistant, reluctant, refractory, recalcitrant, unenthusiastic, doubtful, wayward, unready, indisposed, disinclined, averse, opposed, against, contrary, indifferent, indocile, intractable, demurring, shrinking, flinching, hesitating, shy, slack, evasive, loath, shy of, laggard, malcontent, slow, remiss, grudging, uncooperative, contrary, against the grain.
Antonyms ready*, willing, eager.