Simple past tense and past participle of institute.(verb)
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Use "instituted" in a sentence
"Things weren't looking to good back in 2005 or even into 2006, but wide-sweeping policy changes instituted from the DoD and DoS on down to the military unit level has made the situation there improve dramatically."
"Informing just before a news story comes out with the program the committee was suposed to already know about when it was instituted, is at best, showing the administration knew it was breaking the law, otherwise they never would have bothered telling the Intelligence Committee at all."
"Criticism is rather more directed toward the robber baron philosophy, welfare for corporate friends, cronyism, suppression of policies (instituted from the depression on) that ameliorate conditions for poor, elderly, disabled, and deprived children, and the general tone of disservice to the public that characterizes this administration."