| AFFRIGHTEDLY | • affrightedly adv. (Archaic, poetic) with fright. • AFFRIGHTED adv. AFFRIGHT, to frighten. |
| FAITHFULNESS | • faithfulness n. The state of being faithful. • FAITHFULNESS n. the state of being faithful. |
| FARSIGHTEDLY | • farsightedly adv. In a farsighted manner. • FARSIGHTED adv. seeing or able to see to a great distance. |
| FARTHINGALES | • farthingales n. Plural of farthingale. • FARTHINGALE n. a skirt spreader. |
| FARTHINGLESS | • farthingless adj. Without a farthing; very poor. • FARTHINGLESS adj. without a farthing. |
| FATHERLINESS | • fatherliness n. The property of being fatherly. • FATHERLINESS n. the state of being fatherly. |
| FEATHERLIGHT | • featherlight adj. Alternative form of feather-light. • feather-light adj. Extremely light; light as a feather. • FEATHERLIGHT adj. extremely light. |
| FELDSPATHOID | • feldspathoid n. (Mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did… • feldspathoid adj. (Mineralogy) Resembling a feldspar. • FELDSPATHOID n. any mineral of a group related to feldspar, also FELSPATHOID, FOID. |
| FELSPATHOIDS | • felspathoids n. Plural of felspathoid. • FELSPATHOID n. any mineral of a group related to feldspar, also FELDSPATHOID, FOID. |
| FLAUGHTERING | • FLAUGHTER v. (Scots) to cut turfs. |
| FOOLHARDIEST | • foolhardiest adj. Superlative form of foolhardy: most foolhardy. • FOOLHARDY adj. recklessly brave. |
| FOTHERGILLAS | • FOTHERGILLA n. any plant of the Fothergilla genus of North American deciduous shrubs of the witch-hazel family. |
| HALFWITTEDLY | • halfwittedly adv. In a halfwitted manner. • HALFWITTED adv. feebleminded. |
| HALLEFLINTAS | • HALLEFLINTA n. (Swedish) a dense rock containing quartz and feldspar. |
| MULTIFLASHES | Sorry, definition not available. |
| SPACEFLIGHTS | • spaceflights n. Plural of spaceflight. • space␣flights n. Plural of space flight. • SPACEFLIGHT n. flight beyond the earth's atmosphere. |
| THIOSULFATES | • thiosulfates n. Plural of thiosulfate. • THIOSULFATE n. any salt of thiosulphuric acid, also THIOSULPHATE. |
| UNFATHERLIER | • UNFATHERLY adj. not fatherly. |