(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"
If you are loath to do something, you do not want to do it. The new finance minister seems loth to cut income tax. = reluctant. Unwilling or reluctant; disinclined: I am loath to go on such short notice. be loath to do sth to be unwilling to do something = reluctant
If you loathe something or someone, you dislike them very much. The two men loathe each other She loathed being the child of impoverished labourers. = detest. to hate someone or something very much = detest