Actors Gal Gadot and Ray Fisher previously claimed Whedon behaved badly towards them on the 2017 superhero movie.
In a lengthy New York magazine article published on Monday, Whedon denied having "threatened" Gadot's career.
"I don't threaten people. Who does that?" said the 57-year-old.
"English is not her first language, and I tend to be annoyingly flowery in my speech," added the film-maker, who took over the reins after original director Zack Snyder withdrew following a family tragedy.
