| FACETIOUSNESSES | • facetiousnesses n. Plural of facetiousness. • FACETIOUSNESS n. FACETIOUS, playfully jocular; humorous. |
| FACTORABILITIES | • FACTORABILITY n. the quality of being factorable. |
| FAITHLESSNESSES | • faithlessnesses n. Plural of faithlessness. • FAITHLESSNESS n. FAITHLESS, without faith. |
| FAITHWORTHINESS | • faithworthiness n. (Archaic) trustworthiness. • FAITHWORTHINESS n. the state of being faithworthy, worthy of faith or belief. |
| FAMILIARISATION | • familiarisation n. Alternative spelling of familiarization. • FAMILIARISATION n. the act of familiarising, also FAMILIARIZATION. |
| FAMILIARIZATION | • familiarization n. The act, process or result of familiarizing. • FAMILIARIZATION n. the act of familiarizing, also FAMILIARISATION. |
| FANATICALNESSES | • FANATICALNESS n. FANATICAL, extravagantly or unreasonably zealous. |
| FANATICISATIONS | • FANATICISATION n. the process of making fanatical, also FANATICIZATION. |
| FANATICIZATIONS | • FANATICIZATION n. the process of making fanatical, also FANATICISATION. |
| FANTASTICALNESS | • fantasticalness n. The state or condition of being fantastical. • FANTASTICALNESS n. the state of being fantastical. |
| FANTASTICATIONS | • fantastications n. Plural of fantastication. • FANTASTICATION n. the act of fantasticating. |
| FARTHINGSWORTHS | • farthingsworths n. Plural of farthingsworth. • FARTHINGSWORTH n. as much as a farthing will buy. |
| FASHIONABLENESS | • fashionableness n. The state of being fashionable; stylishness; elegance. • FASHIONABLENESS n. the state of being fashionable. |
| FATHEADEDNESSES | • FATHEADEDNESS n. FATHEADED, stupid. |
| FATIGABLENESSES | • FATIGABLENESS n. FATIGABLE, easily tired, also FATIGUABLE. |
| FAULTLESSNESSES | • FAULTLESSNESS n. FAULTLESS, without fault. |
| FAVORABLENESSES | • favorablenesses n. Plural of favorableness. • FAVORABLENESS n. FAVORABLE, (US) favourable, also FAVOURABLE. |