Reluctantly is how you do something when you are not willing, or when you make that unwillingness show: you move slowly, you say yes late, you look as if someone is pulling you. She reluctantly agreed. He got up reluctantly. This is the everyday member of the family — you hear the adverb in speech more than the noun reluctance. Though actually, it does not always mean the person hates the thing. It can be manners: you reluctantly take the last cake because grabbing it fast looks greedy. Parents, news, and stories all use it; it is not a fancy word, just a little more careful than but I didn't want to.