Hang on, I’m consulting the dictionary of fun words that I’m writing to find good ones. Tysm for asking!!
Ok I’ve got a tasting plate for you (sorry, it’s impossible for me to pick just one):
coruscating, because it can mean sparkling or scathing, and I like that those seemingly opposites are brought together in one word,
finity, because it’s the opposite of infinity and it makes so much logical sense that the word exists but we never use it,
gruntled, the opposite of disgruntled, for the reason above,
ignominious, because it’s fun to say,
licit, which is again a word that logically makes sense but isn’t widely used (the opposite of illicit),
meretricious, because it sounds like a compliment but it actually means that something has no value/integrity (backhanded insults anyone? :D),
opia, which is the ambiguous intensity of looking someone in the eye,
poleaxed, because it’s such a fun word to use in a sentence (it means surprised, but like to a very extreme extent),
ravel, which is again the opposite of unravel and just means a tangle or knot,
sonder, which most tumblrinas probably know already but it’s the realization that every random passerby is living a life as deep and complex as your own,
vernorexia, which is a romantic mood inspired by spring,
and yonderly, which is another fun word for daydreaming.
Thanks for giving me an excuse to look back through my dictionary!