underpriced

adj

1. Having a relatively or abnormally low price.

   “Dauman, said the increase was justified because MTV Networks had been underpriced compared with other cable networks with fewer viewers.”

2. Underestimated.

   “The case that Sunak is underpriced (though still unlikely) to remain prime minister is one I have made before. It rests on: the limited value of voting-intention polls this far out from an election, the competitiveness of his personal ratings with those of the Labour party leader, and the historic rarity of Britain turning decisively left when it isn’t in a good mood […]”