(to be) (as) ugly as sin informal simile
Extremely ugly; unlovely; unattractive
I don’t know why my mom bought that bag. It is as ugly as sin.
Though his appearance is ugly as sin, my friends still likes him due to his kind and generous character.
I hate frogs because they’re ugly as sin.
A derogatory term indicates that a person whose hair is red and considered unattractive.
An ugly woman with an attractive body.
Very ugly
Extremely ugly.
people often do irrational or foolish things when they are in love.
I and my boyfriend have decided to get married in the summer. I don't think that's wise, since we won't have enough money saved by then to set up house. But then, one cannot love and be wise.