hoary

adjective7

1. •
   White or grey with age.

   • The old man bowed his hoary head in acquiescence.
2. •
   (figurative) Old or old-fashioned; trite.

   • In its God-like prime, The Simpsons attacked well-worn satirical fodder from unexpected angles, finding fresh laughs in the hoariest of subjects. — 2012
3. •
   White, whitish, or greyish-white.

   • As hoary frost with spangles doth attire, The mossy braunches of an oke halfe ded, — 1590
4. •
   Of a pale silvery grey.
5. •
   Covered with short, dense, greyish white hairs.
6. •
   (no longer used) Remote in time past.
7. •
   (no longer used) Moldy; mossy; musty.