| extreme(adjective, extravagant, excessive) |
| extrinsic(adjective, casual) |
| fabricated(adjective, untrue, deceptive) |
| fallacious(adjective, untrue, deceptive) |
| false(adjective, justification) |
| fanciful(adjective, wild, heedless, pointless, inconstant) |
| far-out(adjective, dear, illegitimate) |
| fickle(adjective, wild, heedless, pointless, unprincipled) |
| fierce(adjective, mean, severe, harsh, heartless) |
| fitful(adjective, wild, heedless, inconstant) |
| flimsy(adjective, false, justification) |
| flip(adjective, rude, fresh, bold, disrespectful) |
| fluctuating(adjective, wild, heedless, inconstant) |
| forbidden(adjective, improper, unjust) |
| fort |
| fortuitous(adjective, useless, unnecessary, pointless, wandering) |
| forward(adjective, rude, fresh, bold, disrespectful) |
| foul(adjective, dishonest, immoral, prejudiced, wrongful) |
| foundationless(adjective, false, justification, unsupported) |
| free |