noun

• (grammar) A word that modifies a noun or noun phrase or describes a noun’s referent.
  "The words “big” and “heavy” are English adjectives."
• (obsolete) A dependent; an accessory.
  "it must be an adjective of dain"

adj

• (grammar) Adjectival; pertaining to or functioning as an adjective.
• (law) Applying to methods of enforcement and rules of procedure.
  "The whole English law, substantive and adjective."
• (chemistry, of a dye) Needing the use of a mordant to be made fast to that which is being dyed.
• (obsolete, reflected in the chemical sense, but extinct as a general sense) Incapable of independent function.
  "In fact, God is of not so much importance in Himself, but as the end towards which man tends. That irreverent person who said that Browning uses “God” as a pigment made an accurate criticism of his theology. In Browning, God is adjective to man."

verb

• (transitive) To make an adjective of; to form or convert into an adjective.
  "Language has as much occasion to adjective the distinct signification of the verb, and to adjective also the mood, as it has to adjective time. It has […] adjectived all three."
• (transitive, chiefly as a participle) To characterize with an adjective; to describe by using an adjective.