ugliest

adjective

1. 1

   Displeasing to the eye; not aesthetically pleasing.

2. 2

   Displeasing to the ear or some other sense.

3. 3

   Offensive to one's sensibilities or morality.

   “He played an ugly trick on us.”

4. 4

   Ill-natured; crossgrained; quarrelsome.

   “an ugly temper; to feel ugly”

5. 5

   Unpleasant; disagreeable; likely to cause trouble or loss.

   “With all this competition, expect things to get ugly.”