massive

Consisting of or making up a large mass; bulky, heavy, and solid: synonym: heavy.

Having relatively high mass.

Large or imposing, as in quantity, scope, degree, intensity, or scale.

Large in comparison with the usual amount.

Affecting a large area of bodily tissue; widespread and severe.

Lacking internal crystalline structure; amorphous.

Without internal structure or layers and homogeneous in composition. Used of a rock.