Which term describes something that is plentiful or overflowing?

The term that describes something that is plentiful or overflowing is "abundant." This word conveys the idea of having more than enough of something, whether it's resources, opportunities, or items. It signifies a state where there is a generous supply or a large quantity, which is the opposite of scarcity.

In contrast, options like "scant," "limited," and "scarce" all suggest a lack or shortage of something. These terms reflect conditions where quantities are insufficient or below what is considered adequate. "Scant" implies that something is barely sufficient or too little, while "limited" and "scarce" also denote conditions where availability is significantly reduced. Thus, "abundant" stands out as the clear choice for describing a condition of plenty or overflow.