| Term | Definition |
| ebullient | enthusiastic; joyously unrestrained |
| egregious | extreme; conspicuously and outrageously bad or reprehensible |
| epicurean | devoted to pleasure; furnishing gratification of the senses |
| errant | straying from the right course or from accepted standards; roving or wandering, as in search of adventure or opportunity for gallant deeds. |
| erratic | irregular, unpredictable, inconsistent |
| erroneous | incorrect, mistaken, inaccurate |
| erudite | having or showing profound knowledge; scholarly |
| euphonious | having a pleasant sound |
| evanescent | fleeting, brief, transient, short-lived |
| exhaustive | thorough, complete |
| exorbitant | extravagant, greater than reasonable; greatly exceeding bounds of reason or moderation |
| expedient | contributing to personal advantage, serving to promote your interest |
| extant | still in existence |
| extemporaneous | with little or no preparation or forethought; done without much preparation |
| extraneous | not essential; not pertinent to the matter under discussion |
| facetious | cleverly amusing in tone; playfully humorous |
| fallacious | illogical, wrong, unsound |
| facile | arrived at without due care or effort; performing adroitly, effortless |
| fatuous | idiotic; complacently or inanely foolish |
| fervid | intense; characterized by intense emotion |
| flamboyant | richly and brilliantly colorful; elaborately or excessively ornamented |
| flippant | having a light, pert, trifling disposition; lacking proper seriousness |
| foppish | affecting extreme elegance in dress and manner; excessively refined and fastidious |
| florid | gaudy, extremely ornate; flushed with red |
| frugal | thrifty, cheap, economical |