Definition of gray-toned:
(adj) :
Of a colour between black and white, having neutral hue and intermediate brightness.
(n) :
An achromatic colour between black and white.
(adj) :
Dreary, gloomy, cloudy.
(adj) :
Of indistinct, disputed or uncertain quality or acceptability.
(adj) :
Old.
(adj) :
Gray-haired.