| errant |
| erring |
| fabricated(adjective, fake, false, counterfeit, sham) |
| factitious(adjective, fake, false, counterfeit, sham) |
| faked(wrong, fake, false, counterfeit, phony) |
| faultful |
| faux |
| feigned(adjective, fake, false, counterfeit, sham) |
| figmental(fake, false, fantastic, untrue, unreal) |
| flawed |
| foreign(adjective, strange, fantasy, unreal) |
| forged(adjective, wrong, fake, false, counterfeit) |
| foxy(mean, smooth, false, cunning, deceitful) |
| framed(adjective, wrong, fake, false, counterfeit) |
| freakish(adjective, strange, fantasy, unreal) |
| funnily(adjective, strange, fantasy, unreal) |
| funny(adjective, strange, fantasy, unreal) |
| furtive(adjective, mean, smooth, smart, false) |
| futile(adjective, hopeless, pointless) |
| grotesque(adjective, strange, fantasy, unreal) |