Reluctantly means unwillingly, dragging your feet. Doing it, and making sure everybody can tell you would rather not.
The word marks the gap between the action and the wish, which is why it usually attaches to verbs of agreement: reluctantly agreed, reluctantly accepted, reluctantly concluded. It is a favourite of formal reporting, where reluctantly signals that a decision was forced. The adjective reluctant takes to and a verb. Willingly and readily are its opposites, and eagerly is further along the same line.
1adverbreluctantlyUnwillingly and without enthusiasm.
“He reluctantly agreed to give evidence.”
Proto-Indo-European
*lewg-
Latin
reluctāns
English
reluctant
English, today
reluctantly
Built from
From reluctant + -ly. reluctant Latin reluctāns (whence -ant), present participle of reluctor (“to struggle against, oppose, resist”), from re- (“back”) + luctor (“to struggle”) (whence re-.
Etymology from Wiktionary, CC BY-SA