| Term | Definition |
| probity | unscrupulousness, underhandedness, shadiness, knavery, chicanery, skulduggery |
| procrastinate | act, take action, settle, decide, dispose of, take care of |
| prodigious | puny, tiny, minute, trivial, minuscule, negligible, infinitesimal; unexceptional, undistinguished, unimpressive, mediocre |
| proliferate | decline, diminish, wane, taper off, decrease, peter out, subside, dwindle |
| promulgate | conceal, keep secret |
| propensity | aversion, repugnance, disinclination, antipathy, immunity |
| propitiate | antagonize, alienate, exasperate, vex, anger, annoy, incense |
| protracted | contracted, compressed, truncated, brief, foreshortened, curtailed |
| prowess | cowardice, timidity; incompetence, ineptitude |
| pusillanimous | bold, daring, intrepid, courageous, spirited, dynamic, forceful |
| quell | instigate, foment, provoke, incite, kindle; enflame, arouse, stir up |
| quixotic | realistic, practical, down-to-earth |