Solid

compatto

(lacking holes or hollows)

continuo

(typography: written as one word)

massiccio

(large, massive)

massiccio

(lacking holes or hollows)

massiccio

(extremely filling)

solido

(in the solid state)

solido

(strong, unyielding (as of foundations etc))

tinta unita

(of one color)

unito

(typography: written as one word)

solido

(chemistry: fundamental state of matter)

solido

(geometry: three-dimensional object)

tinta unita

(article of clothing of one color)