'gray-haired' definitions:

Definition of 'gray-haired'

(from WordNet)
adjective
Showing characteristics of age, especially having grey or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head" [syn: grey, gray, grey- haired, gray-haired, grey-headed, gray-headed, grizzly, hoar, hoary, white-haired]

Definition of 'gray-haired'

From: GCIDE
  • gray-haired \gray-haired\ gray-headed \gray-headed\adj. showing characteristics of age, especially having gray or white hair.
  • Syn: gray, grey, grey-haired, grey-headed, hoar, hoary. [WordNet 1.5]