| COURAGEFUL | • COURAGEFUL adj. full of courage. |
| DISGUSTFUL | • disgustful adj. (Archaic) disgusting, vile. • disgustful adj. Full of disgust. • DISGUSTFUL adj. provoking disgust. |
| FULGURATED | • fulgurated v. Simple past tense and past participle of fulgurate. • FULGURATE v. to flash like lightning. |
| FULGURATES | • fulgurates v. Third-person singular simple present indicative form of fulgurate. • FULGURATE v. to flash like lightning. |
| FULGURITES | • fulgurites n. Plural of fulgurite. • FULGURITE n. a vitrified sand tube produced by the striking of lightning on sand. |
| FULIGINOUS | • fuliginous adj. Pertaining to or resembling soot in such features as colour, texture or taste; sooty, dusky. • FULIGINOUS adj. sooty; having a dark or dusky color. |
| FURLOUGHED | • furloughed v. Simple past tense and past participle of furlough. • FURLOUGH v. to grant a leave of absence to. |
| FUTUROLOGY | • futurology n. The scientific forecasting of future trends in science, technology or society. • FUTUROLOGY n. the study of the future. |
| GUILEFULLY | • guilefully adv. In a guileful manner. • GUILEFUL adv. deceitful. |
| LUCIFUGOUS | • lucifugous adj. Having a dislike of light, particularly from the sun. • lucifugous adj. Nocturnal. • LUCIFUGOUS adj. shunning or avoiding light. |
| THOUGHTFUL | • thoughtful adj. Demonstrating thought or careful consideration. • thoughtful adj. Demonstrating kindness or consideration for others. • THOUGHTFUL adj. absorbed in thought. |
| UNFLUSHING | • unflushing adj. That does not flush. • UNFLUSH v. to lose colour. |
| UNGRACEFUL | • ungraceful adj. (Colloquial, nonstandard) Not graceful; lacking grace. • UNGRACEFUL adj. not graceful. |
| 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. |
| UNMUFFLING | • unmuffling v. Present participle of unmuffle. • UNMUFFLE v. to free from something that muffles. |
| UNRIGHTFUL | • unrightful adj. Not rightful. • UNRIGHTFUL adj. not rightful. |
| UNRUFFLING | • unruffling v. Present participle of unruffle. • unruffling adj. Not creating ruffles or stress. • UNRUFFLE v. to recover from ruffling. |