(as) ugly as sin

idiom

Definition of (as) ugly as sin

informal
: very ugly That dog of yours is (as) ugly as sin.

Comments on (as) ugly as sin

What made you want to look up (as) ugly as sin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to move or obtain by small maneuvers

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!