showing characteristics of age, especially having grey or white hair
lacking seriousness; given to frivolity
having a head of straight hair cut very short (hence bristly)
having a heading or course in a certain direction
having a head of a specified kind or anything that serves as a head; often used in combination
of an achromatic color of any lightness intermediate between the extremes of white and black
intermediate in character or position
a neutral achromatic color midway between white and black
