A protectionist is someone who agrees with and supports protectionism.
例句
Trade frictions between the two countries had been caused by trade protectionists.贸易保护主义者引起的两国之间的贸易摩擦。
ADJ-GRADED
（政策、措施、法律）贸易保护主义的
Protectionist policies, measures, and laws are meant to stop or reduce imports.
例句
GATT member countries have largely agreed to replace expensive and inefficient protectionist policies with a competitive free market system for world trade.关贸总协定的成员国已大体上同意在全球贸易中用竞争性的自由市场体制取代代价高且效率低的保护主义政策。