hideous

Definition of Hideous in English :

grossly offensive to decency or morality; causing horror

Example Sentences:
'subjected to outrageous cruelty'
'a hideous pattern of injustice'
'horrific conditions in the mining industry'

2. hideous, repulsive

so extremely ugly as to be terrifying

Example Sentences:
'a hideous scar'
'a repulsive mask'

WordNet Lexical Database for English. Princeton University. 2010.

Hideous

adjective

1.

extremely ugly; repulsive

a hideous person

2.

terrifying and horrific

adjective

horrible to see, hear, etc.; very ugly or revolting; dreadful

adj.

1. Repulsive, especially to the sight; revolting. See Synonyms at ugly.

2. Morally offensive; detestable: hideous acts of torture.

3. Causing great harm or fear; terrible: a hideous disease.