| undaunted |
not discouraged; not giving up even though something is difficult or frightening. |
| undecided |
not yet decided or settled. [2 definitions] |
| under |
below; beneath. [15 definitions] |
| under- |
a prefix that means "below" or "beneath." [2 definitions] |
| underclothes |
clothing worn next to the skin under other clothing; underwear. |
| under cover |
hidden; in secret. |
| underdog |
a person or team that is expected to lose a contest in sports or politics. |
| undergo |
to have the experience of; receive; endure. |
| underground |
located, living, or taking place beneath the earth's surface. [6 definitions] |
| undergrowth |
low plant growth beneath and around taller trees. |
| underhand |
done with the hand below shoulder level. [3 definitions] |
| underline |
to draw a line under. [2 definitions] |
| underneath |
below or beneath; under. [3 definitions] |
| under no circumstances |
in no instance; never. |
| under one's thumb |
under the power of someone; being controlled or very influenced by. |
| under one's wing |
under one's care or protection. |
| underpants |
short pants worn under other clothing as underwear. |
| underpass |
a passage or road that goes beneath another passage or road. |
| undersea |
having to do with, located, carried on, or used beneath the surface of the sea; underwater. |
| undershirt |
a sleeveless shirt worn next to the skin, usually under other clothes. |
| underside |
the under or lower side or surface; bottom. |