| flighty |
lacking stability, or serious purpose or interest; irresponsible; frivolous. [2 definitions] |
| flimflam |
(informal) a bit of nonsense; foolery. [3 definitions] |
| flimsy |
not solid or substantial; fragile; weak. [3 definitions] |
| flinch |
to draw away suddenly, as in pain or fear; wince. [3 definitions] |
| flinders |
chips, splinters, or fragments. |
| fling |
to throw violently or forcefully; hurl. [8 definitions] |
| flint |
a very hard form of quartz that gives off sparks when it is struck by steel. [3 definitions] |
| flint glass |
a bright fusible optical glass that contains lead oxide and is used for lenses and crystal. |
| flintlock |
an obsolete gun mechanism in which a flint strikes steel, making a spark that ignites the priming powder. [2 definitions] |
| flinty |
made of or containing flint. [2 definitions] |
| flip1 |
to toss sharply so as to cause to turn over or spin. [9 definitions] |
| flip2 |
a mixed drink made with an alcoholic beverage, sugar, and beaten eggs. |
| flip3 |
(informal) disrespectful; discourteous. [2 definitions] |
| flip-flop |
a sudden reversal or change of mind, allegiance, or the like. [7 definitions] |
| flip one's lid |
(slang) to lose control of oneself. |
| flip one's wig |
(slang) to lose control of oneself. |
| flip out |
(informal) to lose control of one's emotions, esp. in anger or excitement. |
| flippant |
disrespectful or indifferent to someone or something worthy of respect; shallowly humorous. |
| flipper |
a wide, flat limb such as on a whale, sea turtle, sea lion, or other aquatic animal, used esp. for swimming. [3 definitions] |
| flip side |
(informal) the opposite, usu. less important, side of a phonograph record. [2 definitions] |
| flirt |
to act in a romantically or sexually enticing manner without serious intention; play at love. [6 definitions] |