| v. t. | 1. | To value, rate, or estimate below the real worth; to depreciate. |
| 2. | To esteem lightly; to treat as of little worth; to hold in mean estimation; to despise. | |
| n. | 1. | A low rate or price; a price less than the real worth; undervaluation. |
| Verb | 1. | undervalue - assign too low a value to; "Don't underestimate the value of this heirlooom-you may sell it at a good price" Synonyms: underestimate Antonyms: overvalue, overestimate - assign too high a value to; "You are overestimating the value of your old car" |
| 2. | undervalue - esteem lightly | |
| 3. | undervalue - lose in value; "The dollar depreciated again" |