| BUMFLUFFS | • BUMFLUFF n. an adolescent's soft and fluffy growth, not deserving to be called a beard. | 
| BUMFUZZLE | • bumfuzzle v. (Transitive, chiefly South Midland US, Southern US) To confuse or fluster. • BUMFUZZLE v. to confuse.
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| DUMBFOUND | • dumbfound v. (Transitive) To confuse and bewilder; to leave speechless. • DUMBFOUND v. to strike dumb; to confuse with astonishment, also DUMBFOUNDER, DUMFOUND, DUMFOUNDER.
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| DUMFOUNDS | • dumfounds v. Third-person singular simple present indicative form of dumfound. • DUMFOUND v. to strike dumb; to confuse with astonishment, also DUMBFOUND, DUMBFOUNDER, DUMFOUNDER.
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| EFFLUVIUM | • effluvium n. A gaseous or vaporous emission, especially a foul-smelling one. • effluvium n. A condition causing the shedding of hair.
 • EFFLUVIUM n. (Latin) disagreeable vapours.
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| FRENULUMS | • frenulums n. Plural of frenulum. • FRENULUM n. (Latin) a connecting fold of membrane, also FRENUM, FRAENUM.
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| FULMINOUS | • fulminous adj. Explosive. • fulminous adj. (Figurative) furious.
 • FULMINOUS adj. relating to thunder and lightning, also FULMINEOUS.
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| FUSARIUMS | • FUSARIUM n. a type of fungus, causing plant disease. | 
| FUTURISMS | • futurisms n. Plural of futurism. • FUTURISM n. an artistic and literary movement.
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| HUMOURFUL | • humourful adj. Humorous; comical. • HUMOURFUL adj. full of humour, also HUMORFUL.
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| MOUTHFULS | • mouthfuls n. Plural of mouthful. • MOUTHFUL n. as much as a mouth can hold.
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| MUSEFULLY | • musefully adv. In a museful manner, musingly, pensively. • MUSEFUL adv. meditative; thoughtfully silent.
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| OUTFUMBLE | • outfumble v. (Transitive) To surpass in fumbling. • OUTFUMBLE v. to surpass in fumbling.
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| SULFONIUM | • sulfonium n. (Inorganic chemistry) the univalent H3S+ cation, derived from sulfane. • sulfonium n. (Organic chemistry) any derivative of this cation in which one or more hydrogen atoms are replaced by…
 • SULFONIUM n. the positively charged group SH3, its salts or derivatives, also SULPHONIUM.
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| UNGUIFORM | • unguiform adj. Claw-shaped. • UNGUIFORM adj. shaped like a claw.
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| UNHARMFUL | • unharmful adj. Not harmful. • UNHARMFUL adj. not harmful.
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| UNMINDFUL | • unmindful adj. Lacking awareness; oblivious. • unmindful adj. Failing to remember, recognize, or pay attention to something; heedless of.
 • UNMINDFUL adj. not mindful.
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| UNMUFFLED | • unmuffled adj. Not muffled. • UNMUFFLE v. to free from something that muffles.
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| UNMUFFLES | • unmuffles v. Third-person singular simple present indicative form of unmuffle. • UNMUFFLE v. to free from something that muffles.
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