Infinity is an adjective used to describe any number whose magnitude is larger than that of all finite numbers. So the only way to answer the question is first to rephrase it somewhat. It’s the second transfinite cardinal number, and our first example of a bigger infinity than the ℵ 0 infinity we know and love. For example, in modern mathematics, a line is viewed as the set of all its points, and their infinite number (the cardinality of the line) is larger than the number of integers. Infinity represents something that is boundless or endless, or else something that is larger than any real or natural number. Since the time of the ancient Greeks, the philosophical nature of infinity was the subject of many discussions among philosophers. There exists infinite numbers that are odd, infinite numbers which are even, and infinite numbers which are not integers, and these latter values are not even and not odd. Infinity (symbol: ∞) is a concept describing something without any bound, or something larger than any natural number. Infinity is an undefined term that in reality will never be met, therefore there is no number larger than it. Perhaps not surprisingly, this new infinity—the cardinality of the set of real numbers ℝ—is called ℵ 1. The way that you’re using the word “infinity” only makes sense with a bit more context. So at last we have finally found a larger infinity than ℵ 0! ex) infinity plus one is still equal to infinity There are a number of different kinds of infinity. Infinity is also an extremely important concept in mathematics. It is often denoted by the infinity symbol ∞..