Those aren't terrible words, but as someone who writes, I do hate people putting in fancy words to try to sound smart. If your readers don't understand the word, you shouldn't use it. A big part of writing is clarity, and having something be unclear can make a person stop reading to look it up, and that kills momentum. Personally, I don't want people to put down my book once, if I can help it.
Those aren't terrible words, but as someone who writes, I do hate people putting in fancy words to try to sound smart. If your readers don't understand the word, you shouldn't use it. A big part of writing is clarity, and having something be unclear can make a person stop reading to look it up, and that kills momentum. Personally, I don't want people to put down my book once, if I can help it.