Nadjiverb Share definition Flag A word that can be used as a noun, adjective, and verb without changing it's form. Occasionally the word may be an adverb as well. Rob: "That fly looked pretty fly as I watched it fly." Tim: "NADJIVERB!" Nadjiverb by Lost_Boy289 May 20, 2010 0 0 Get merch Get the Nadjiverb mug. Buy Now — $32.95 See more merch