cepticism was rife in Iran on Tuesday after US President Donald Trump offered talks, with one lawmaker saying negotiations would be a "humiliation".
The country's top leaders did not give an immediate response to Trump's statement a day earlier that he would meet them "any time" without preconditions.
But several public figures said it was impossible to imagine negotiations with Washington after it tore up the 2015 nuclear deal in May.
"With the contemptuous statements (Trump) addressed to Iran, the idea of negotiating is inconceivable. It would be a humiliation," said Ali Motahari, deputy speaker of parliament, according to the conservative Fars News.
"America is not trustworthy. After it arrogantly and unilaterally withdrew from the nuclear agreement, how can it be trusted?" added Interior Minister Abdolreza Rahmani Fazli, according to Fars.
The US is set to start reimposing full sanctions on Iran from August 6 -- a move that has already contributed to a major currency crisis with the rial losing two-thirds of its value in six months.
Only last week, Trump fired off an all-caps tirade at his counterpart Hassan Rouhani on Twitter, warning of untold "suffering" if Iran continued to threaten the US.
Many in Iran are therefore suspicious of his latest volte-face.
"We cannot negotiate with someone who violates international commitments, threatens to destroy countries, and constantly changes his position," said analyst Mohammad Marandi, of the University of Tehran, who was part of the nuclear negotiating team.
Some officials remained more receptive.
"Negotiations with the United States must not be a taboo," said Heshmatollah Falahatpisheh, head of parliament's foreign affairs commission, in an interview with the semi-official ISNA news agency.
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