- ethylenediaminetetraacetic
- lower than a snake's belly
- gravitationally challenged
- electromagnetohydrodynamic
- wild as a Tuckernuck steer
- straight-from-the-shoulder
- antibutyrylcholinesterasic
- academically disadvantaged
- black as Newgate's knocker
- black as the ace of spades
- afraid of one's own shadow
- neuropsychopharmacological
- Trinidadian and Tobagonian
- comfortable as an old shoe
- de bonis non administratis
- ethnopsychopharmacological
- radioimmunoelectrophoretic
- uvulopalatopharyngoplastic
- born on the Fourth of July
- knee-deep in the Big Muddy
- knee-high to a grasshopper
- caught with the cookie jar
- not worth a brass farthing
- not worth a plugged nickel
- too big for one's britches
- off like a bride's nightie
- worth one's weight in salt
- deceptively misdescriptive
- straight from the shoulder
- rare as a four-leaf clover
- drunk as a fiddler's bitch
Note: these words have been obtained from Wiktionary and have been classified and improved through automated computer linguistics processes.