| cadge | To ask for or obtain something to which one is not strictly entitled | |
| cacophony | A harsh, discordant mixture of sounds | |
| byzantine | Of or relating to Byzantium (now Istanbul), the Byzantine Empire, or the complex or intricate. | |
| bygone | belonging to an earlier time | |
| burgeoning | Begin to grow or increase rapidly; flourish | |
| buoyant | Able to stay afloat or rise to the top of a liquid or gas | |
| bungle | To carry out a task clumsily or incompetently, leading to a mistake or undesirable outcome | |
| bumptious | Self-assertive or proud to an irritating degree | |
| bugbear | A cause of obsessive fear, irritation, or loathing | |
| bucolic | Relating to the pleasant aspects of the countryside and country life | |