| exhaustless |
| exorbitant(adjective, expensive, high-priced, pricey, pricely) |
| expensive(adjective, high-priced, pricey, pricely, unaffordable) |
| expressionless |
| extortionate(adjective, expensive, high-priced, pricey, pricely) |
| extravagant(adjective, expensive, high-priced, pricey, pricely) |
| fabulous |
| facile princeps |
| far(obscure, remote, faraway, far-off, impossible) |
| far-flung(obscure, remote, faraway, far-off) |
| far-off(obscure, remote, faraway, impossible, out-of-the-way) |
| far back(expression, obscure, remote, faraway, far-off) |
| faraway(obscure, remote, far-off, impossible, out-of-the-way) |
| farther(obscure, remote, faraway, far-off) |
| foreboding(adjective, person, feelings) |
| formal(adjective, close, quiet, cool, cold) |
| friendless(adjective, separate, private, singular, retiring) |
| frightening(adjective, person, feelings) |
| further(obscure, remote, faraway, far-off) |
| glowering(adjective, person, feelings) |