Actress Scarlett Johansson says Ivanka Trump is coward for not speaking out against father Donald Trump's policies.

On Wednesday, Ivanka gave an interview — her first since her father took oath as President — in which she addressed accusations of being "complicit".

Speaking on Thursday at the Women in the World festival, Johansson said Ivanka's comments in the interview "just baffled" her, reports telegraph.co.uk.

"If you take a job as a public advocate then you must advocate, publicly. She said the biggest change she would make was behind closed doors. Well I thought to myself, that's empowering," Johansson noted, with deep sarcasm. 

She added: "This idea that behind a great man is a great woman. How about being next to them?"

Johansson, 32, said Ivanka was doing women a disservice.

"It's such an old fashioned concept that to be a powerful woman you're going to be seen as bitchy. Well screw that. It's so old fashioned, and uninspired, and really cowardly. I was so disappointed in that interview," she added.

In the interview, Ivanka had said: "If being complicit is wanting to be a force for good and to make a positive impact, then I'm complicit. I don't know what it means to be complicit but, you know, I hope time will prove that I have done a good job and much more importantly, that my father's administration is the success that I know it will be."

Johansson had also impersonated Ivanka in a Saturday Night Live (SNL) skit on March 12, mocking her for remaining silent about her father's policies. In the spoof perfume advertisement, Johansson plays Ivanka, with a voiceover stating: "A feminist, an advocate, a champion for women. 

The "Complicit" ad parody ends with "The fragrance for the woman who can stop all this… but won't."