【Disinclined】 , 【indisposed】 , 【hesitant】 , 【reluctant】 ,  【loath】 , 【averse】 mean manifesting neither the will nor the desire to do or to have anything to do with something indicated or understood.

【Disinclined】 implies a lack of taste or inclination for something for which one has no natural bent or which meets one’s disapproval.

【Indisposed】 implies an unfavorable or often a hostile or unsympathetic attitude.

【Hesitant】 suggests a holding back through fear, distaste, uncertainty, or irresolution.

【Reluctant】 adds to 【hesitant】 a definite resistance or sense of unwillingness.

【Loath】 stresses the lack of harmony between something one anticipates doing and his likes or dislikes, tastes or distastes, or sympathies or antipathies; thus, a tender person may be 【loath】 to punish a refractory child but a strict disciplinarian would be 【loath】  to allow that child to go unpunished; one may be 【loath】 to believe a well-founded report that discredits a friend and equally 【loath】 to disbelieve a rumor that confirms his bad opinion of a person.