| A | B |
| post mortem (adj/n) | after death; analysis of a completed event |
| posthumous (adj) | after burial; taking place after death |
| postprandial (adj) | following a meal, esp. dinner |
| post- | after |
| precarious (adj) | dangerously unstable, insecure |
| preclude (v) | to prevent or make impossible by prior action |
| predilection (n) | natural liking or preference for |
| prerogative (n) | right or privilege |
| prevaricate (v) | to stray from the truth; lie |
| presumptuous (adj) | taking liberties; overconfident yet unjustified |
| pretentious (adj) | showy |
| presentiment (n) | hunch, premonition; feeling that something is about to happen |
| pre- | before |
| trans-, tra- | across, beyond |
| transcend (v) | to go beyond, exceed expectations; to rise above the limits of |
| transient (adj) | short-lived, transitory, temporary; (Latin = going across) |
| ephemeral (adj) | short-lived, not permanent; (Greek = only for a day) |
| evanescent (adj) | short-lived, not permanent; (Latin = vanishes away) |
| transpose (v) | to reverse or change position of, esp. words |
| transgression (n) | violation of a law; overstepping a limit; sin |
| transmute (v) | to change into a different form, nature, or appearance |
| transpire (v) | to happen, occur; to come to pass |
| transmigrate (v) | to pass into another body after death |
| translucent (adj) | partially transparent; letting light pass through |
| transparent (adj) | clear; capable of being seen through; diaphanous |
| obloquy (n) | strong verbal abuse |
| obtrude (v) | to push forward; thrust oneself forward to get attention |
| obdurate (adj) | hardened in feelings; unyielding; stubborn |
| obfuscate (v) | darken; make obscure; confuse |
| obliterate (v) | to destroy, erase; make undecipherable |
| obsequious (adj) | slavishly attentive, servile |
| sycophant (n) | a self-serving flatterer; one who is obsequious |
| obstinate (adj) | stubborn |
| obviate (v) | to make unnecessary; prevent |
| obtuse (adj) | blunt, dull; lacking mental quickness |
| oblivion (n) | forgetfulness; state of being forgotten |
| oblivious (adj) | lacking memory or concious knowledge; unaware |
| coagulate (v) | to clot; congeal; thicken |
| cohere (v) | to stick together; be logically consitent or united |
| commodious (adj) | spacious, roomy; comfortable |
| complacent (adj) | sef-satisfied yet unconcerned; smug |
| compunction (n) | remorse |
| conflagration (n) | large, disastrous fire; huge conflict |
| contentious (adj) | argumentative; causing an argument |
| conglomeration (n) | a mass of material stuck together; a mixed coherent mass |
| corroborate (v) | to support with evidence; to confirm |
| confabulate (v) | to converse casually |
| contortion (n) | a twisted, strained, or deformed posture |
| disapprobation (n) | disapproval |
| discerning (adj) | insightful; mentally sharp |
| discordant (adj) | not in harmony; disagreeing; quarrelsome |
| disparage (v) | to belittle; decry |
| disputatious (adj) | argumentative |
| disingenuous (adj) | lacking sincerity; giving false appearance of simple frankness |
| dissonance (n) | discord; harsh sound |
| cacophony (n) | harsh, unpleasant sound |
| dissemble (v) | disguise, simulate, conceal under some pretense |
| dissuade (v) | to advise against |
| disseminate (v) | to scatter, disperse throughout (like seeds) |