Wordnik — beautiful (newish) English dictionary

This so-called "un-dictionary" has apparently been around since mid-2009, but I only just discovered Wordnik today. It's UI is visually striking and easy to use, and it's community-driven, without being polluted and juvenile like Urban Dictionary.

http://www.wordnik.com/words/incendiary

definition of "incendiary" on Wordnik.com

The definition of "incendiary" on Wordnik.com

detail of a word entry

Detail of a word entry on Wordnik.com