Mammoth Uncensored Word List:
35 words ending with ar, 14 letters long

amphiprostylar antitubercular cardiovascular diospyrobezoar extraarticular extravehicular gastrovascular hepatocellular hydrogrossular intermolecular intraarticular intramolecular juxtaarticular juxtavesicular macromolecular microfibrillar multimolecular nebuchadnezzar neurofibrillar nonrectangular nonspectacular orthomolecular overparticular periarteriolar perifollicular periglomerular peripeduncular pharmacobezoar proventricular slantendicular slantindicular squamocolumnar supermolecular supramolecular tubuloalveolar