Independent in existence or function; not subordinate.
Not imaginary; actual; real.
Of or relating to the essence or substance; essential: substantive information.
Having a solid basis; firm.
Grammar Expressing or designating existence; for example, the verb to be.
Grammar Designating a noun or noun equivalent.
n.
Grammar A word or group of words functioning as a noun.
[Middle English substantif, self-sufficient, independent, from Old French, substantive, from Late Latin substantīvus, from Latin substantia, substance; see substance.] sub'stan·tive·ly adv., sub'stan·tive·ness n.