| Term | Definition |
| derivative | not original; secondary |
| detached | not physically connected or emotionally removed from |
| deterrent | something that discourages something else from happening |
| detrimental | causing harm or injury |
| devious | deviating from a straight course |
| devise | come up with (an idea, plan, explanation, theory, or priciple) after a mental effort |
| diffuse | move outward |
| digression | a turning aside (of your course or attention or concern) |
| diligence | conscientiousness in paying proper attention to a task |
| diminution | the act of decreasing or reducing something |
| discerning | having or revealing keen insight and good judgment |
| disclose | reveal |
| discordant | not in agreement or harmony |
| discount | to disregard |
| discriminating | marked by the ability to see or make fine distinctions |
| disdain | lack of respect accompanied by a feeling of intense dislike |
| disinclination | a certain degree of unwillingness |
| dismiss | declare void, bar from attention or consideration |
| disparage | express a negative opinion of |
| disparity | inequality or difference in some respect |
| dispassionate | unaffected by strong emotion or prejudice |
| disperse | move away from each other |
| disputatious | inclined or showing an inclination to dispute or disagree, even to engage in law suits |
| disseminate | scatter, distribute, cause to become widely known |
| dissent | express opposition through action or words |
| dissonance | disagreeable sounds |
| divergent | tending to move apart in different directions |
| doctrine | a belief (or system of beliefs) accepted as authoritative by some group or school |
| document | record in detail |
| dogmatic | characterized by arrogant assertion of unproved or unprovable principles |
| dormant | not active but capable of becoming active |
| dubious | fraught with uncertainty or doubt |
| duplicity | noun, acting in bad faith |
| duration | continuance in time |
| eccentric | unusual, odd |
| elaboration | developing in intricate and painstaking detail |
| elated | exultantly proud and joyful |
| eloquence | powerful and effective language |
| elusive | be difficult to detect or grasp by the mind |
| embellish | make more attractive by adding ornament, colour, etc. |
| emulate | strive to equal or match, especially by imitating |
| endorse | give support or one's approval to |
| engender | make children, produce |
| enhance | increase |
| enigma | something that baffles understanding and cannot be explained |
| enmity | a state of deep-seated ill-will |
| enunciate | express or state clearly |
| ephemeral | enduring a very short time |
| equivocal | open to two or more interpretations |
| erratic | liable to sudden unpredictable change |
| erroneous | containing or characterized by error |
| erudite | having or showing profound knowledge |
| esoteric | hard to understand; known only to the chosen few |
| euphemism | an inoffensive expression that is substituted for one that is considered offensive |
| exacerbate | make worse |
| exalt | praise, glorify, or honor |
| execute | put in effect |
| exemplary | being or serving as an illustration of a type |
| exemplify | be characteristic of, show by example |
| exhaustive | very thorough |
| exhilarating | invigorating and refreshing; cheering |
| exonerate | pronounce not guilty of criminal charges |
| expedient | tending to promote some proposed or desired object; fit or suitable for the purpose |
| expedite | to speed up the progress of; hasten |
| explicit | fully and clearly expressed or demonstrated |
| exploit | a striking or notable deed; feat; spirited or heroic act |
| extol | to praise highly; laud; eulogize |
| extraneous | introduced or coming from without; not belonging or proper to a thing |
| extricate | to free or release from entanglement; disengage |
| exuberance | state of being almost uninhibitedly enthusiastic |
| facilitate | to make easier or less difficult; help forward, to assist |
| fallacious | logically unsound, deceptive, misleading |
| fanaticism | marked by extreme, uncritical enthusiasm or zeal |
| fastidious | excessively particular, critical, or demanding; hard to please |
| feasible | capable of being done, effected, or accomplished |
| fervor | great warmth and earnestness of feeling |
| flagrant | shockingly noticeable or evident; obvious; glaring |
| frivolous | characterized by lack of seriousness or sense |
| frugality | being focused on expenditure; prudently saving or sparing |
| furtive | by stealth; secret |
| garrulous | excessively talkative in a rambling, roundabout manner, esp. about trivial matters |
| glutton | a person with a remarkably great desire or capacity for something |
| gratify | to give pleasure to (a person or persons) by satisfying desires |
| gratuitous | given, done, bestowed, or obtained without charge or payment; free; voluntary |
| gravity | serious or critical nature |
| gregarious | fond of the company of others; sociable |
| guile | insidious cunning in attaining a goal; crafty or artful deception |
| gullible | easily deceived or cheated |
| hamper | to hold back; hinder; impede, o interfer with |
| hardy | capable of enduring fatigue, hardship, exposure, etc.; sturdy; strong |
| haughtiness | pride; snobbery; arrogance |
| heed | to give careful attention to |
| heresy | any belief or theory that is strongly at variance with established beliefs, customs, etc. |
| homogeneous | joint nature, similar in structure |
| hyperbole | obvious and intentional exaggeration |
| hypocritical | professing feelings or virtues one does not have |
| hypothetical | based on a logical theory rather then on reality |
| iconoclastic | characterized by attack on established beliefs or institutions |
| idiosyncrasy | a behavioral attribute that is distinctive and peculiar to an individual |
| illusory | Deceiving or tending to deceive, as by false appearance. |