Definition of "undersell"

undersell

verb
third-person singular simple present undersells, present participle underselling, simple past and past participle undersold
1. To sell goods for a lower price than a competitor.
2. To sell something for less than its value.
3. To put forward an idea, or to market a new product, with insufficient enthusiasm.
  Quotations
  But by inferring sleep, the etymology also undersells Siberia's scope, both real and imagined.
  2020, Sophy Roberts, The Lost Pianos of Siberia, page 12