Former Fox News host Bill O'Reilly said conservative Wall Street Journal columnist Peggy Noonan is unfairly attacking President Trump in saying that he lacks masculinity.

In an op-ed published Monday, O'Reilly accused Noonan of being dishonest in her analysis of Trump.

"Peggy Noonan recently launched a vicious personal attack on Trump's manhood," O'Reilly wrote in a column published by The Hill. "Ms. Noonan basically ignored the unprecedented battering the president has taken in the media as a reason that he might respond to criticism inappropriately at times. She is smart enough to know the media score but not honest enough to provide perspective while denigrating Trump."

Noonan wrote in her own column last week that Trump, in his frequent public swipes at congressional Republicans and the news media, is displaying characteristics that are more and more feminine.

"Trump must remind people of their first wife," she wrote. "Actually his wife, Melania, is tougher than he is with her stoicism and grace, her self-discipline and desire to show the world respect by presenting herself with dignity. ... His inability — not his refusal, but his inability — to embrace the public and rhetorical role of the presidency consistently and constructively is weak."

Noonan did not return a request for comment from the Washington Examiner, but she has written critically about the news media's coverage of Trump in the past, saying that there is an explicit and personal "dislike" for Trump that is "unalterable" among national mainstream journalists.