undersell

To present (an idea, for example) with little or insufficient enthusiasm.

To sell at a lower price than (a competitor); undercut.

To sell (something) at a price lower than the real, normal, or appropriate value.

To sell under, or cheaper than.

To sell the same articles at a lower price than; to sell cheaper than.

To sell goods for a lower price than a competitor.

To sell something for less than its value.

To put forward an idea, or to market a new product, with insufficient enthusiasm.

sell cheaper than one’s competition