"Tyrannical leaders" refers to individuals in positions of power who exercise their authority in a cruel, oppressive, and dictatorial way, often disregarding the rights and well-being of others. Full definition
And should you ever somehow achieve the office of Tyrannical Leader of the Known World, consider nuking it from space. (wolfsgamingblog.com)
This may be a very British film, but there's no real subtlety in watching scenes encouraging that a stand be taken against tyrannical leaders with too much power. (weliveentertainment.com)
He says that robots smarter than humans could potentially be the ultimate tyrannical leaders. (techtimes.com)