Lexically interesting words. . Longest word without a vowel: symphysy. Runners-up: nymphly, rhythms, gypsyfy, gypsyry. Excluding 'y': crwths. Longest word with at most 1 vowel: glycyphyllin, psychorhythm. Word with most vowels: counterrevolutionaries. Word with most consecutive vowels (5): cooeeing, miaoued, miaouing, queueing. (Euouae, consisting of nothing but 6 vowels, is of doubtful legitimacy.) Smallest word with all 5 vowels: eulogia, miaoued, sequoia. Longest word with only 3 distinct alphabets: seeresses. Longest word with only 4 distinct alphabets: senselessness. Longest word with no repeated letter: dermatoglyphics. Longest word with letters in alphabetical order: aegilops. Longest word with letters in reverse alphabetical order: trollied. Longest word that can be typed with the right hand alone (on a qwerty keyboard): phyllophyllin. Longest word that can be typed with the left hand alone (on a qwerty keyboard): devertebrated. Longest word that can be typed using the top row (of a qwerty keyboard): rupturewort. Runners-up: peppertree, pepperwort, perpetuity, proprietor, repertoire, tetterwort, typewriter. Interesting words with the substring 'uu': continuum, fatuus, menstruum, residiuum, vacuum. Word with the maximum number of distinct alphabets (16): blepharoconjunctivitis, formaldehydesulphoxylic, pneumoventriculography, pseudolamellibranchiate, superacknowledgment. Word with most a's (6): astragalocalcaneal, calcaneoastragalar, taramasalata. Word with most e's (7): electrotelethermometer. Word with most i's (6): impossibilification, indistinguishability, indivisibility, minimifidianism, pericardiomediastinitis. Word with most o's (6): choledochoduodenostomy, duodenocholedochotomy, monogonoporous, odontonosology, proctocolonoscopy, pseudomonocotyledonous, zoologicoarchaeologist. Word with most u's (5): untumultous. Words with four consecutive letters of the alphabet appearing consecutively: mnop: cremnophobia, gymnopaedic, gymnoplast, limnophile, somnopathy (and a few others). rstu: overstudy, overstuff, understudy, afterstudy, overstudious, superstuff, understuff. Words with four consecutive letters of the alphabet appearing consecutively in reverse order: ponm: tamponment, weaponmaker. Words with 3 consecutive s's: bossship, headmistressship, patronessship. The last word: zyzzyva.
I'm amazed that you took the time to look up all of those words. I'm going to either ask my English teacher about them or look them up to see what they mean.