Mr Adams insisted there was nothing wrong with his tweeting a poem which dwells on a woman’s “sexiness”.
Meanwhile, Breige Wright, one of the people named in a BBC documentary into the Cahill controversy, has accused the broadcast of bias.
“There has been a deluge of inaccurate, prejudiced and selective reporting of all aspects of this case,” a statement issued via her solicitors said.
Ms Wright released correspondence from Ms Cahill which she said showed she supported the rape victim.
Ms Cahill, who alleges she was raped as a 16-year-old by a senior IRA figure and then forced to confront her attacker in an IRA “kangaroo court”, has questioned the tone of many of Mr Adams’ comments on social media.
Mr Adams defended the posting of a poem on Twitter by Maya Angelou called Still I Rise which included the verse: “Does my sexiness upset you? Does it come as a surprise? That I dance like I have diamonds at the meeting of my thighs.”
When pressed by TV3 journalist Ursula Halligan about the appropriateness of the tweet given the sexual abuse controversy Sinn Féin has been embroiled in, Mr Adams said: “It’s a wonderful poem and I’m sure you would appreciate it.
“You picked out a particular section of it. I tweet a lot about poetry, I tweet a lot about books. I think you’re being, if you don’t mind, provocative. So, take that up with the poet — those aren’t my words, they are hers.”
Ms Cahill has raised objections to a number of tweets posted by Mr Adams, including a tweet the Sinn Féin leader ‘favourited’ in January which made sexual references to Harry Potter character Neville Longbottom which read: “Hey bby girl, I got something LONG 4 ur BOTTOM.”
Mr Adams has also tweeted a link to a piece by writer Michael Harding which refers to the average man as “a half-evolved Neanderthal with a fragrant penis”.
Mr Adams says he believes Ms Cahill’s rape allegations, but not her claim to have been subjected to an internal IRA investigation.
He said he had acknowledged his view that she was a victim and a survivor of abuse. The allegations were seized upon by the Fianna Fáil leader and the Taoiseach in an attempt to smear him and to smear Sinn Féin. “There is no cover-up,” Mr Adams said.