loath, loth, reluctant -- (unwillingness to do something contrary to your custom; "a reluctant smile"; "loath to admit a mistake")
antipathetic, antipathetical, averse, indisposed, loath, loth -- ((usually followed by `to') strongly opposed; "antipathetic to new ideas"; "averse to taking risks"; "loath to go on such short notice"; "clearly indisposed to grant their request")