Adjectives are words that describe nouns; the word 'solids' is a plural noun. Some adjectives that describe solids are:
Solid, durable, natural.
You are such a BOUTEHOOLE
Firm, stable, solid, flat.
Liquid, Gaseous, and Solid. Solid solutions create alloys.
Durable, solid, hard, and natural are words commonly used to describe rock.
solid iron nickel hard hard ball not solid smallest bit of earth
hard bumpy smooth
heavy.. heavy is already a adjective
unshifting, firming, unyielding
solid surface of the earth arid, meadow, desert, swamp, field, yard, lawn
The solid that dissolves is called a solute.
Other words that describe excellence include mastery, distinction, superiority, and perfection.