Sufinitive Share definition Flag A term of endearment and a descriptive word used for beauty, intelligence, or skill. It can also be used with suffixes like -ly and -ing. Baby you are so sufinitive.I love you sufinitively.That's some sufinitive stuff right there. Sufinitive by Ryan'sWRLD April 6, 2020 0 0 Get merch Get the Sufinitive mug. Buy Now — $32.95 See more merch