Ayatollah Khamenei made the comments in a meeting with members of Iran’s Assembly of Experts in Tehran on Thursday.
Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei also censured US President Donald Trump’s latest hostile comments against the Iranian nation at the UN as “ugly”, "foolish” and “sheer lies.”
“That foolish, extremely ugly and hideous speech by the US president, with its gangster and cowboy language fraught with sheer lies, stems from their fury, frustration and light-headedness,” the Leader said.
Ayatollah Khamenei said that Washington’s anger is also rooted in its failure to advance its agenda in the West Asia region, where Iran has played an influential, dignified and successful role.
“The presence and influence of the Islamic Republic of Iran caused the plots and intentions of the US and the Zionist regime [of Israel] to fail in the region, and that is the reason for their anger,” the Leader added.
The Americans have over the past many years pursued a so-called “New Middle East” and “Greater Middle East” plan for West Asia, with its focus on Iraq, Syria and Lebanon, Ayatollah Khamenei said.
“But they faced defeat in all the three countries,” emphasized the Leader.
During his speech at the UN General Assembly on Tuesday, Trump accused Iran of engaging in “destabilizing activities” in the region. He claimed that Iran’s “support for terror is in stark contrast to the recent commitments of many of its neighbors to fight terrorism and halt its financing.”
Trump also denounced Iran’s 2015 nuclear agreement with the world powers as “an embarrassment” that Washington may abandon.
However, Iranian President Hassan Rouhani, during his own UN speech, fired back at the US president for his “ignorant and spiteful” comments against his nation.
Rouhani said the “ignorant, ugly, spiteful literature of the US president, which was full of false information and groundless allegations, against the Iranian nation” were beneath the dignity of the United Nations.
Iranian Foreign Minister Mohammad Javad Zarif earlier said that that US President Donald Trump’s UN address belongs in medieval times and is not worth of a reply.
"Trump's ignorant hate speech belongs in medieval times - not the 21st century UN - unworthy of a reply," Zarif tweeted on Tuesday.
“Fake empathy for Iranians fools no one," he stressed.