| A | B |
| mitigate | appease; moderate |
| mollify | soothe |
| morose | ill-humored; sullen; melancholy |
| mosaic | picture made of colorful small inlaid tiles |
| mundane | worldly as opposed to spiritual; everyday |
| munificent | : very generous. |
| nefarious | very wicked |
| negate | cancel out; nullify; deny. |
| nonchalance | indifference; lack of concern; composure |
| notoriety | disrepute; ill fame. |
| novelty | something new; newness |
| nuance | shade of difference in meaning or color; subtle distinction. |
| nurture | nourish; educate; foster. |
| obdurate | stubborn |
| obliterate | destroy completely. |
| oblivion | obscurity; forgetfulness |
| obstinate | stubborn; hard to control or treat. |
| odious | hateful; vile. |
| ominous | threatening |
| opaque | dark; not transparent |
| opportunist | individual who sacrifices principles for expediency by taking advantage of circumstances. |
| ornate | excessively or elaborately decorated. |
| orator | public speaker |
| opulence | extreme wealth; luxuriousness; abundance. |
| optimist | person who looks on the good side. |
| ostentatious | showy ; pretentious; trying to attract attention |
| pacifist | one opposed to force; antimilitarist. |
| pariah | social outcast |
| parody | humorous imitation; spoof; takeoff; travesty |
| parsimony | stinginess; excessive frugality. |
| partisan | one-sided; prejudiced; committed to a party. |
| paucity | scarcity. |
| penury | severe poverty; stinginess. perfunctory: superficial; not thorough; lacking interest, care, or enthusiasm. |
| peripheral | marginal; outer. |
| pernicious | very destructive. |
| perpetuate | make something last; preserve from extinction. |
| pervasive | pervading; spread throughout every part. |
| pessimism | belief that life is basically bad or evil; gloominess. |
| phenomena | observable facts; subjects of scientific investigation. |