ill-assorted
From Longman Dictionary of Contemporary Englishill-assortedˌill-asˈsorted adjective WRONG/UNJUSTIFIEDan ill-assorted group of people or things do not seem to belong together in a groupExamples from the Corpusill-assorted• Tony Donaldson's first view of the clinic site was of a curious and ill-assorted hybrid of stone and canvas.• At first sight they seemed an ill-assorted pair.• She greeted the ill-assorted quartet with genuine warmth and friendliness.• The ill-assorted travelling party grew and grew.