Trading at a price level which is low relative to historical trends, a similar asset, or (for derivatives) a theoretical value.
Of poor quality.
Low and/or reduced in price.
Stingy; mean; excessively frugal.
Underhand or unfair.
Of little worth.
Cheaply.
Price.
Cheapness; lowness of price; abundance of supply.
That cannot be replaced, especially because it is unique.