Merriam ~ Webster

ugly adjective ug·​ly | \ ˈə-glē \ uglier; ugliest. Definition of ugly ; 1a : offensive to the sight : HIDEOUS; b : offensive or unpleasant to any sense. 2 : morally offensive or objectionable corruption—the ugliest stain of all; 3a : likely to cause inconvenience or discomfort. b : SURLY, QUARRELSOME an ugly disposition; 4 : FRIGHTFUL, DIRE