| A | B |
| fallacious | false; misleading |
| fastidious | difficult to please |
| fervor | strong passion |
| fickle | lacking loyalty; unpredictably changeable; erratic |
| flaccid | lacking firmness; soft; limp |
| flagrant | openly and obviously evil; glaring; conspicuous |
| fledgling | beginner |
| flippancy | treating a serious situation with arrogant humor or disrespect |
| foment | to stir into action; rouse; incite |
| foresight | the ability to see ahead, anticipate, or predict |
| glutton | a person who consues huge quantities of food or drink; someone with great endurance |
| gravity | seriousness |
| gregarious | sociable; extroverted; enjoying companionship |
| gullible | easily deceived |
| hackneyed | unoriginal; trite |
| hamper | interfere with movement or progress |
| haphazard | without plan or direction |
| harangue | a long, lecturing speech |
| harbor | to provide shelter or refuge; hide |
| hardy | bold; brave; capable of withstanding harsh conditions |
| frugal | careful with money; thrifty |
| fulminate | to explode, either with sound or anger |
| furtive | sneaky; secretive |
| futile | hopelessly ineffective; useless; in vain |
| garbled | changed so much that the original meaning has been distorted; scrambled |
| garish | flashy; guady |
| garner | collect; gather; accumulate; earn |
| garrulous | very talkative; loquacious |
| genial | friendly; gracious; kind |
| germane | relevant; fitting |
| girth | distance around an object; circumference |