loathformalI was loath to spend all the money at once.
balkThe MP balked at a proposal to raise council tax.
reluctantI was reluctant to leave because I was having such a good time.
disinclinedI am disinclined to take on the extra work without more pay.
grudgingShe earned the grudging admiration of her colleagues for her discoveries.
begrudgingThe begrudging respect he had for her soon turned to outright devotion.