Ugliness rhymes with:
deadliness, ghastliness, holiness, liveliness, loneliness, niggardliness, orderliness, silliness, slovenliness, timeliness, worldliness
deadliness, ghastliness, holiness, liveliness, loneliness, niggardliness, orderliness, silliness, slovenliness, timeliness, worldliness