| under the weather |
(informal) slightly ill or unhappy. |
| undertow |
a strong current of ocean water moving in the opposite direction from the waves moving toward shore. |
| underwater |
located, done, or made for use below the surface of a body of water. [2 definitions] |
| underwear |
clothing worn next to the skin under other clothing. |
| underweight |
lower in weight than is normal, desired, or necessary. |
| underworld |
the criminal class of society. [2 definitions] |
| undid |
the past tense of "undo." |
| undo |
to release from or remove wrapping or fastening from. [3 definitions] |
| undone1 |
the past participle of "undo." |
| undress |
to remove the clothing or covering from. [2 definitions] |
| undue |
too much; more than is right or appropriate. |
| unearth |
to dig up out of the earth. [2 definitions] |
| uneasy |
not comfortable; nervous. [2 definitions] |
| unemployed |
having no job; not employed. [2 definitions] |
| unequal |
of two or more things, not having the same amount, value, or quality; not equal. [3 definitions] |
| uneven |
not smooth, regular, or flat; rough or jagged. [5 definitions] |
| unfair |
not just or right; treating people in manner that is too harsh or that is unequal with the way others are treated. [2 definitions] |
| unfamiliar |
not known or experienced before; unusual; strange. [2 definitions] |
| unfasten |
to release from; undo; separate. |
| unfold |
to open or spread out from a folded condition. [4 definitions] |
| unfortunate |
having bad luck; unlucky. [3 definitions] |