From Longman Dictionary of Contemporary Englishhalfway decent/normal/successful etchalfway decent/normal/successful etcinformalGOOD ENOUGH reasonably good, normal, successful etc the only halfway decent hotel here → halfway
Examples from the Corpus
halfway decent/normal/successful etc• Discs viable, a second halfway decent act was required.• And you need to be halfway decent and honest and real.• Reading about that stuff, downing really halfway decent coffee.• Sefelt has pulled back halfway normal, swelling up and down with big wet, rattling breaths. 