à contre-coeur
/a ˌkɒntrə ˈkəː/ /a ˌkɒ̃trə ˈkəː/(also à contre coeur, à contrecoeur)
adverb
Against one's will; reluctantly.
Origin
Early 19th century. From French à contre-coeur against one's will, reluctantly from à for, with + contre-coeur aversion.