on Just Publishing Advice:
Using multitudinous big words in your writing will make you a sesquipedalian writer
It is always a temptation for a writer to show off the vastness of their vocabulary.
There is nothing wrong at all with using long words in your writing. But it is the use, style, placement, frequency, relevance and the mixing of formal and informal register that can cause difficulties for readers.
Readers love learning new words, but if they have to run off to a dictionary three times on one page, it will not make for an enjoyable read.
Writers need to excogitate before they ameliorate a text with interminable and convoluted lexis.