| ARTFULNESS | • artfulness n. The quality of being artful or of acting in an artful manner. • ARTFULNESS n. the state of being artful. |
| FAULTINESS | • faultiness n. The quality of being faulty. • FAULTINESS n. the state of being faulty. |
| FEATLINESS | • FEATLINESS n. the state of being featly. |
| FENESTRALS | • fenestrals n. Plural of fenestral. • FENESTRAL n. a window with some other translucent material instead of glass. |
| FILTHINESS | • filthiness n. The property of being filthy. • FILTHINESS n. the quality of being filthy. |
| FITFULNESS | • fitfulness n. The quality of being fitful. • FITFULNESS n. the quality of being fitful. |
| FLAGSTONES | • flagstones n. Plural of flagstone. • FLAGSTONE n. a large paving stone. |
| FLATNESSES | • flatnesses n. Plural of flatness. • FLATNESS n. the state of being flat. |
| FLESHMENTS | • FLESHMENT n. (Shakespeare) the act of fleshing, or the excitement attending a successful beginning. |
| FLINTINESS | • flintiness n. The state or condition of being flinty. • FLINTINESS n. the state of being flinty. |
| FLOWSTONES | • flowstones n. Plural of flowstone. • FLOWSTONE n. a general term for deposits formed by dripping and flowing water on walls and floors of caves. |
| FLUENTNESS | • fluentness n. The quality of being fluent. • FLUENTNESS n. the quality of being fluent. |
| FROSTLINES | • frostlines n. Plural of frostline. • frost␣lines n. Plural of frost line. • FROSTLINE n. the depth to which the ground freezes in winter. |
| FUTILENESS | • futileness n. Futility. • FUTILENESS n. futility. |
| INFLATUSES | • INFLATUS n. (Latin) a blowing or breathing into; inspiration. |
| SNIFFLIEST | • sniffliest adj. Superlative form of sniffly: most sniffly. • SNIFFLY adj. having a sniffle. |
| SNUFFLIEST | • snuffliest adj. Superlative form of snuffly: most snuffly. • SNUFFLY adj. tending to snuffle. |
| STONEFLIES | • stoneflies n. Plural of stonefly. • STONEFLY n. a winged insect. |
| SULFONATES | • sulfonates n. Plural of sulfonate. • sulfonates v. Third-person singular simple present indicative form of sulfonate. • SULFONATE n. a salt of sulphonic acid. |