adj
Freq #895169
Meanings
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1
adj
serving or intended to prohibit or forbid something
The internal warning was prohibitory rather than merely advisory.
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2
adj
so costly or severe that it effectively prevents an activity
The government imposed a prohibitory tariff on the imported goods.
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Etymology
From prohibit + -ory, modeled on Latin prohibitorius ("serving to hinder or forbid"), from prohibere ("to hold back, prevent").