Here are some words that I love, but that I can't bring myself to use in conversation with anyone:
Perspicacity
Nefarious
Erudition
Indubitably
Excogitated
Opprobium
brobdingnagian
and this one: the longest one in the English language
pneumonoultramicroscopicsilicovolcanoconiosis.
Try dropping that one nonchalantly into a conversatrion over lunch. If it doesn't choke you, try using another word like, quadridimensionality or Honorificabilitudinitatibus.
My all-time favorite is this: Llanfairpwllgwyngyllgogerychwyrn-drobwllllandyssiliogogogoch. The name of a Welsh village in Anglesea. It means, “The church of St. Mary in a hollow of white hazel, near to the rapid whirlpool, and to St. Tisilio church, near to a red cave.”
Words have always been fun for me. Maybe you can create a list of your own, too.
I tag Beth and Ginger.
Let's hear your fun words.