| grandiloquent | Pompous or extravagant in language, style, or manner, especially in a way that is intended to impress | |
| grandiose | Impressively large, ambitious, or extravagant | |
| grandstand | A large and usually tiered structure for seating spectators, as at a sports event | |
| grasping | Characterized by unrestrained greed or avarice | |
| grating | Sounding harsh and unpleasant | |
| gravitas | Seriousness and importance of manner, causing feelings of respect and trust in others | |
| gregarious | Fond of the company of others; sociable | |
| grisly | Causing horror or disgust | |
| grovel | To act in an obsequious manner in order to obtain someone's forgiveness or favor | |
| gumption | Shrewd or spirited initiative and resourcefulness | |