Open English Wordnet
Nouns
(n)grizzly, grizzly bear, silvertip, silver-tip, Ursus horribilis, Ursus arctos horribilispowerful brownish-yellow bear of the uplands of western North America
Adjectives
(s)grey, gray, grey-haired, gray-haired, grey-headed, gray-headed, grizzly, hoar, hoary, white-hairedshowing characteristics of age, especially having grey or white hair“whose beard with age is hoar” (Coleridge), “nodded his hoary head”