| picayune | Of little value or importance; petty; trivial | |
| piebald | Having irregular patches of two colors, typically black and white. | |
| pilfer | To steal things of little value or in small amounts, often again and again | |
| pillory | A wooden framework with holes for the head and hands, in which an offender was imprisoned and exposed to public abuse | |
| pinnacle | The most successful point; the culmination. | |
| piquant | Having a pleasantly sharp taste or appetizing flavor | |
| pitfall | A hidden or unexpected danger or difficulty | |
| pittance | A very small or inadequate amount of money paid to someone as an allowance or salary | |
| pivotal | Of crucial importance in relation to the development or success of something else | |
| platitude | A statement that has been used too often to be interesting or thoughtful; a cliché | |