Qatar faces possible further sanctions by Arab states that have severed ties with Doha over allegations of links to terrorism, as a deadline to accept their demands is expected to expire on Sunday night.
Qatari Foreign Minister Sheikh Mohammed bin Abdulrahman al-Thani said the demands were made to be rejected, adding that the Arab ultimatum was aimed not at tackling terrorism but at curtailing his country's sovereignty.
But he told reporters in Rome that Doha remained ready to sit down and discuss the grievances raised by its Arab neighbours.
"This list of demands is made to be rejected. It's not meant to be accepted or ... to be negotiated," Sheikh Mohammed said.
"The state of Qatar instead of rejecting it as a principle, we are willing to engage in (dialogue), providing the proper conditions for further dialogue."
He added that no one had the right to issue an ultimatum to a sovereign country.