transitive verb-·sold′, -·sell′ing
- to sell at a lower price than (another seller)
- to publicize or promote in a restrained or inadequate manner
transitive verbun·der·sold, un·der·sell·ing, un·der·sells
- To present (an idea, for example) with little or insufficient enthusiasm: Now that our proposal has failed, it's obvious that we undersold it.
- To sell at a lower price than (a competitor); undercut.
- To sell (something) at a price lower than the real, normal, or appropriate value.
(third-person singular simple present undersells, present participle underselling, simple past and past participle undersold)