mangyEnglishOxford American Thesaurusmangy adjective 1 a mangy cat: scabby, scaly, scabious, diseased. 2 a mangy old armchair: scruffy, moth-eaten, shabby, worn, unkempt, shoddy, sorry, dirty, squalid, filthy, sleazy, seedy; informal tatty, the worse for wear, scuzzy, grungy, yucky; British, informal grotty; North American, informal raggedy.