To sell at a lower price than or to work for lower wages or fees than (a competitor).
To put too small a charge into.
To reduce drastically
To reduce is to make something smaller or to become or feel smaller, or forcing someone into a less desirable position.
To attract prospective buyers; be popular on the market:
Find another word for underselling. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for underselling, like: undercutting, undercharging, cutting, slashing, reducing and selling.