| FAINTIEST | • faintiest adj. Superlative form of fainty: most fainty. • FAINTY adj. somewhat faint, also FAINTISH. |
| FANTASIST | • fantasist n. One who creates fantasies. • fantasist n. One living in a fantasy world. • fantasist n. A writer who writes in the fantasy style. |
| FANTASTIC | • fantastic adj. Existing in or constructed from fantasy; of or relating to fantasy; fanciful. • fantastic adj. Not believable; implausible; seemingly only possible in fantasy. • fantastic adj. Resembling fantasies in irregularity, caprice, or eccentricity; irregular; grotesque. |
| FANTASTRY | • fantastry n. Something fantastical. • FANTASTRY n. dandyism, also PHANTASTRY. |
| FATISCENT | • fatiscent adj. (Mineralogy) Having chinks or openings; rimose. • FATISCENT adj. gaping with cracks. |
| FATTENERS | • fatteners n. Plural of fattener. • FATTENER n. one that fattens. |
| FATTINESS | • fattiness n. The quality of being fatty. • FATTINESS n. the state of being fatty. |
| FESTINATE | • festinate v. (Medicine) To become involuntarily quicker, such as when walking or speaking, due to certain disorders. • festinate v. (Obsolete) To hurry. • festinate adj. (Obsolete) Hurried, hasty. |
| FETATIONS | • fetations n. Plural of fetation. • FETATION n. the development of a fetus, also FOETATION. |
| FLATTINGS | • flattings n. Plural of flatting. • FLATTING n. painting with a flat finish. |
| FLOATANTS | • floatants n. Plural of floatant. • FLOATANT n. something which makes things float. |
| FUNGISTAT | • fungistat n. A chemical or biological agent that stops fungi from reproducing. • FUNGISTAT n. a substance that inhibits the growth of a fungus. |
| INFESTANT | • infestant n. That which infests something. • INFESTANT n. something that infests. |
| STANDFAST | • stand␣fast v. (Idiomatic) stand firm. • stand␣fast interj. (Archery) a warning not to pass between the arrow and the target. • STANDFAST n. a reliable person or thing. |
| STERNFAST | • sternfast n. (Nautical) A rope or chain for making fast a ship’s stern to a wharf, etc. • STERNFAST n. a rope or chain for making fast a ship's stern to a wharf. |
| TRANSFECT | • transfect v. To introduce foreign material into eukaryotic cells. • TRANSFECT v. to cause transfection in, the infection of a cell with pure viral nucleic acid. |
| TRANSFIXT | • transfixt v. Obsolete spelling of transfixed; simple past tense and past participle of transfix. • TRANSFIX v. to impale. |