[uhn-der-bid] 
verb (used with object), -bid, -bid⋅ding.| 1. | to bid less than (another bid) or less than the bid of (another bidder), esp. in seeking a contract to be awarded to the lowest bid or bidder; make an offer at a lower price than. |
| 2. | Cards. to bid less than the value or worth of (a contract or hand). |
| 3. | to bid lower than another or too low for the value of something. |
| un·der·bid (ŭn'dər-bĭd') v. un·der·bid, un·der·bid·ding, un·der·bids v. tr.
To make an unnecessarily low bid. un'der-bid' n., un'der·bid'der n. |
dərˈbɪd