| ARTFULNESS | • artfulness n. The quality of being artful or of acting in an artful manner. • ARTFULNESS n. the state of being artful. |
| FLUORINATE | • fluorinate v. (Chemistry, transitive) To introduce fluorine into a compound. • FLUORINATE v. to introduce fluorine into a chemical compound. |
| FLUSTERING | • flustering adj. Agitated, confusing. • flustering v. Present participle of fluster. • FLUSTER v. to put into a state of nervous confusion. |
| FLUTTERING | • fluttering n. Rapid back-and-forth waving or oscillation. • fluttering v. Present participle of flutter. • FLUTTERING adj. vibrating or move quickly. |
| FRAUDULENT | • fraudulent adj. Dishonest; based on fraud or deception. • fraudulent adj. False, phony. • FRAUDULENT adj. characterized by fraud. |
| FREQUENTLY | • frequently adv. At frequent intervals. • frequently adv. (Mathematics, of a sequence) For infinitely many terms of the sequence. • FREQUENT adv. occurring often. |
| INGRATEFUL | • ingrateful adj. Ungrateful; not grateful. • ingrateful adj. Unpleasing to the sense; distasteful. • INGRATEFUL adj. not grateful, also UNGRATEFUL. |
| INTERFLUVE | • interfluve n. (Geology) The region of higher land between two connected river valleys. • INTERFLUVE n. an area between two rivers that flow in the same direction. |
| PREFULGENT | • PREFULGENT adj. extremely bright. |
| PROFULGENT | • profulgent adj. (Obsolete) Shining forth; brilliant; effulgent. • PROFULGENT adj. shining out; radiant. |
| UNDERFELTS | • underfelts n. Plural of underfelt. • UNDERFELT n. an underlayer of felt used in carpeting. |
| UNFATHERLY | • unfatherly adj. Not fatherly; unpaternal. • UNFATHERLY adj. not fatherly. |
| UNFAULTIER | • UNFAULTY adj. not faulty. |
| UNFILTERED | • unfiltered adj. Without a filter (e.g., a cigarette). • unfiltered adj. Having not been filtered (e.g., coffee grounds). • unfiltered adj. (By extension) unrestrained, unrestricted, frank. |
| UNFORETOLD | • unforetold adj. Not foretold; unforeseen. • UNFORETOLD adj. not foretold. |
| UNGRATEFUL | • ungrateful adj. Not grateful; not expressing gratitude. • ungrateful n. A person who fails to show gratitude; an ingrate. • UNGRATEFUL adj. showing no gratitude, also INGRATEFUL. |
| WANRESTFUL | • wanrestful adj. (Dialectal, chiefly Scotland) Restless; uneasy. • WANRESTFUL adj. (Scots) restless. |