>>> akimbo
with hands on hips, elbows bent outward.
Peter Pan stood akimbo whilst mocking Captain Hook. In comic books, the villains stand akimbo while laughing maniacally over their nefarious plans, while costumed superheroes stand akimbo, their country's flag flapping majestically behind them, after defeating nefarious malefactors. Don't just stand there, people! Be you good or evil, if you truly want people to take notice of you, stand akimbo!
>>> gelid
very cold, icy, frosty. Latin, 1600–10; gelidus icy cold.
Choosing to take public transportation rather than driving to work, I find myself being exposed to extremes in temperatures which challenge the wisdom of that choice. Most days, I don't mind; I relish the relative coolness of early morning in late summer or the "brisk" walk to the bus stop in the winter before the sun has risen. But there are days where the descriptions of "hot" and "cold" fall short. I discovered a splendid word last year. A coworker asked me how cold my walk in had been. I replied it was positively gelid. At his request I defined the word and he suggested I might be but one of a handful of people on the planet who would ever use it. Nonetheless, I insisted, for the day in question, no other word would do. A week or so later he pointed me to a story in the local paper where a sportswriter describe a recent game night using that very term. I felt justified; my coworker remained unconvinced. A couple months ago, I came across the word in Christopher Fowler's mystery The Victoria Vanishes. So I see the word isn't entirely extinct. However it might need help of people like you to give it the recognition it deserves.
>>> kerfuffle
a great commotion.
This is a great word I used once to quell an escalating argument among the children of some friends. "Hey!" I demanded, "What's all the kerfuffle about?" Each child immediately began to defend his own stance, and then the commotion petered out as the new word sunk in. I believe the meaning was readily discerned - after all, they knew they were squabbling, and that an adult would intervene for no other reason. But new knowledge rendered their arguments moot, and peace was restored, at least temporarily.
>>> malefactor
a criminal; a person doing harm or evil toward another.
As most translations of the Bible render Luke 23: 33, Jesus was crucified between two "criminals". At least one translation refers to the other men as "evil-doers", which comes closer to the Latin root malefactor: to act wickedly, do an evil. Both the King James version and the Darby translation give us a little extra flavor: "And when they were come to the place, which is called Calvary, there they crucified him, and the malefactors, one on the right hand, and the other on the left." Now doesn't that just sound more intriguing than "criminals"?
>>> nefarious
wicked, vile, from Latin nefarious, equiv. nefās offense against divine or moral law.
The sorts of deeds malefactors commit. Some criminals are merely bad; others are nefarious!
>>> rascal
a dishonest or unscrupulous person; a mischievous person or animal.
Whichever meaning you chose, unscrupulous person or mischievous person, this word has sadly fallen out of common use. How could this happen? I was reminded of this wonderful word by being referred to as such (second meaning, thankfully) a couple weeks ago. Not as common as they once were, but are still recognized by most people, are hooligan, whippersnapper and scoundrel. Meriting honorable mentions are rapscallion, varlet and miscreant.
So there you have it: a dozen words which not only convey specific meanings, but are fun to say and will make you the life of any party. Well, maybe not the life of the party. But using these words will certainly leave an impression upon others.