unprecedented

Adding to the unprecedented nature of the event, three members of Kurashov's own unit had agreed to testify against him.

This March, Director of National Intelligence Tulsi Gabbard told Congress that Iran's stockpile of enriched uranium was "at its highest levels" and "unprecedented for a state without nuclear weapons".

Under this scenario, he might hope that the unprecedented strikes start a chain reaction leading to unrest that topples the Islamic Republic.

Israel's "Operation Rising Lion", as it calls its attack on Iran, is unprecedented.

Some of the families had argued that they had no alternative schools in their area to meet the needs of their children with Send, and that the policy was "unprecedented" throughout Europe.