Heck, I'll do it for ya:
http://www.merriam-webster.com/dictionary/grisly
From Selecting a ghostSir Arthur Conan Doyle wrote:A winding-sheet was wrapped round the figure, and formed a hood over the head, from under the shadow of which two fiendish eyes, deep set in their grisly sockets, blazed and sparkled like red-hot coals.
As for brislier; you, sir, failz @ englishh
Anyway:
bristlier