v.tr. 1. To buy less (of something) than is needed.

What is Underbought?

verb (used with object), un·der·bought, un·der·buy·ing. to buy more cheaply than (another). ... verb (used without object), un·der·bought, un·der·buy·ing. to buy an insufficient quantity, as of supplies or stock in trade.

What does Underbuying mean?

: to buy insufficient quantities.