PROLIX

long-winded, verbose

tediously prolonged or tending to speak or write at great length
"a prolix lecturer telling you more than you wanted to know."

"He had a habit of being prolix when he corresponded in emails."

"She grew tired of the way he would prolix about every single topic, she wanted less talk, more action."

"He felt that he was a unnecessarily prolix author and in todays fast-paced modern world that was so unnecessary."