adjective
Displeasing to the eye; aesthetically unpleasing.
Displeasing to the ear or some other sense.
Offensive to one's sensibilities or morality.
(Southern US) Ill-natured; crossgrained; quarrelsome.
(figuratively, derogatory) Unpleasant; disagreeable; likely to cause trouble or loss.
noun
(slang, uncountable) Ugliness.
(slang) An ugly person or thing.
(logistics, informal) Any product whose size and shape prevents it from fitting neatly on a pallet.
(UK, informal, dated) A shade for the face, projecting from a bonnet.
verb
(transitive, nonstandard) To make ugly (sometimes with up).