A eudemonicneoteric year to all our fellow English language energumens. And if you'd like your own guide to Wordsmanship, the book of that name (subtitled The Art of Verbal Conquest) was published in 1984 by Angus & Robertson (ISBN 0-207-14915-1). While JD and I have sworn the subbing guild oath to keep English lucid, sometimes it's nice to be able to stop an argument with a word or two that your opponent doesn't know.
Here are a few more examples you might like to drop into conversation: hepaticdisagreeable edaciousgreedy incondite crude hebetudinous thick-headed hebdomadalweekly nugatory trifling iracund irritating oscitancy lazy nocuous harmful irrefragable undeniable vilipend slander thrasonical boastful
Wordsmanship has its roots in the concept of one-upmanship, for which we are indebted to the late, great Stephen Potter. His books, Gamesmanship (1947), Lifemanship (1950), One-Upmanship (1952) and Supermanship (1958) explain "how to win without actually cheating" by taking psychological advantage of your opponent at every possible opportunity.
Also well worth tracking down is the smashing 1959 film School For Scoundrels, an archetypal British comedy co-written by Peter Ustinov with a tremendous cast including Ian Carmichael, Terry Thomas, the incomparable Alastair Sim (as Stephen Potter), Dennis Price, Peter Jones, John leMesurier, Hattie Jacques Hugh Paddick and Irene Handl.
Google reveals there was a US remake in 1996, which strikes me as being about as worthwhile as a British remake of Casablanca. Nuffsed.