| extortionate(extreme, improper, shocking, senseless, excessive) |
| extra(spare, extreme, excess, unwarranted, very) |
| extremes |
| extremism |
| extremity |
| exuberance(waste, spare, luxury, extravagance, excess) |
| fabricated(false, extravagant, inflated, embellished, embroidered) |
| fabulousness |
| fancy |
| fantastic(adjective, great, false, superb, marvelous) |
| far-fetched(extraordinary, amazing, unlikely, unbelievable, incredible) |
| far-out(adjective, stupid, extreme, improper, stiff) |
| farfetched(false, unreasonable, extravagant, dubious, flimsy) |
| fat(waste, spare, amazing, excess, surplus) |
| fatiguing(adjective, dull, boring, tired, tedious) |
| fishy(extraordinary, unreasonable, amazing, dubious, suspect) |
| flat(adjective, dull, boring, tedious, irritating) |
| flimsy(thin, extraordinary, unreasonable, amazing, dubious) |
| for the birds(expression, idiom, extraordinary, unreasonable, dubious) |
| full of holes(expression, idiom, extraordinary, unreasonable, dubious) |