| festoon | A chain or garland of flowers, leaves, or ribbons, hung in a curve as a decoration | |
| fetid | smelling extremely unpleasant | |
| fiasco | A complete failure, especially a ludicrous or humiliating one | |
| finagled | Obtained by trickery or craftiness | |
| fitful | Not steady; irregular or spasmodic | |
| flagrant | Something that is shockingly noticeable or evident; obvious; glaring | |
| flippant | Not showing a serious or respectful attitude | |
| florid | Having a red or flushed complexion | |
| flotilla | A small fleet of ships or boats, often organized for a specific purpose | |
| flotsam | The wreckage of a ship or its cargo found floating on or washed up by the sea | |