Rock-___ (strong) (5)
I believe the answer is:
solid
(Other definitions for solid that I've seen before include "Shape with three dimensions" , "continuous" , "Firm - sound - reliable" , "cone-shaped, say" , "Reliable; not hollow" .)
I believe the answer is:
solid
(Other definitions for solid that I've seen before include "Shape with three dimensions" , "continuous" , "Firm - sound - reliable" , "cone-shaped, say" , "Reliable; not hollow" .)