不本意ながら

ふほんいながら

adverb

•

involuntarily, reluctantly, against one's inclination, against one's will, as a matter of unpleasant necessity, despite oneself

不	negative, non-, bad, ugly, clumsy
本	book, present, main, origin, true, real, counter for long cylindrical things
意	idea, mind, heart, taste, thought, desire, care, liking