| underclassman |
a freshman or sophomore student in a high school or college. |
| underclothes |
clothing worn next to the skin, under other garments; underwear. |
| undercoat |
the short hairs growing close to an animal's skin, covered by longer hair or fur. [3 definitions] |
| undercoating |
a coat of sealer applied to the underside of an automobile to protect it from rust. |
| undercover |
carried out or happening in secret. [2 definitions] |
| under cover |
hidden or covert; in secrecy. |
| undercurrent |
a feeling, tendency, mood, attitude, or the like that underlies and often contradicts surface appearances. [2 definitions] |
| undercut |
to cut or cut away under or beneath, usu. so as to create an overhang. [6 definitions] |
| underdevelop |
to develop (something) to less than the required or desirable degree. |
| underdeveloped |
not fully developed; immature, stunted, or deficient. [2 definitions] |
| underdo |
to do less than is needed or wanted. |
| underdog |
a contestant who is expected to lose, as in sports or politics. [2 definitions] |
| underdone |
inadequately cooked, as meat. |
| underdressed |
too informally dressed for the occasion. |
| underemployed |
employed at work that does not use one's full ability, training, or the like. [3 definitions] |
| underestimate |
to appraise at too low a quantity, rate, strength, value, or the like. [2 definitions] |
| underexpose |
to expose (film) to too little light or for too short a time, resulting in lack of contrast. |
| underfeed |
to feed too little or too seldom. [2 definitions] |
| underfoot |
under or below the feet. [2 definitions] |
| underfur |
the fine soft fur under the coarse outer hair of certain animals, such as beavers, seals, and some dogs. |
| undergarment |
a garment worn under other clothing, usu. next to the skin; underwear. |