Not being a whole number or not being a part of a whole number.
Nonintegral can make people think of fractions or numbers that are not complete.
Examples:
The number 3.5 is nonintegral because it is not a whole number.
She divided the pizza into nonintegral parts.
Nonintegral numbers include fractions and decimals.
I prefer nonintegral numbers because they are more interesting.
In the land of math, nonintegral numbers rule the kingdom.
The nonintegral pieces of cake were the best ones.