Substantial
Part of speech: adjective
Definition: Belonging to substance; actually existing; real; as, substantial life. Not seeming or imaginary; not illusive; real; solid; true; veritable. Corporeal; material; firm. Having good substance; strong; stout; solid; firm; as, substantial cloth; a substantial fence or wall. Possessed of goods or an estate; moderately wealthy; responsible; as, a substantial freeholder. Large in size, quantity, or value; as, a substantial amount of money; vast Most important; essential. Ample or full. Significantly great.
Example sentence: The glories of our blood and state, Are shadows, not substantial things; There is no armour against fate, Death lays his icy hand on kings. Scepter and crown must tumble down, And, in the dust, be equal made With the poor crooked scythe and spade.
Solid
Part of speech: noun
Definition: A substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas).A three-dimensional figure (as opposed to a surface, an area, or a curve).A favor: a helpful deed.An article of clothing which is of a single color throughout.Food which is not liquid-based.
Part of speech: adverb
Definition: Without spaces or hyphens.
Part of speech: adjective
Definition: In the solid state; not fluid.Large, massive.Filling.Lacking holes or hollows; as solid gold, solid chocolate.Strong or unyielding; as a solid foundation.Lacking errors or inconsistencies.Written as one word, without spaces or hyphens.Excellent, especially musically.Being of a single color throughout.
Example sentence: The mineral world is a much more supple and mobile world than could be imagined by the science of the ancients. Vaguely analogous to the metamorphoses of living creatures, there occurs in the most solid rocks, as we now know, perpetual transformation of a mineral species.