1926, from unilateral + -ism. Earliest usages seem to be in the sense of "advocate of unilateral disarmament." Meaning "pursuit of a foreign policy without allies" is attested by 1964.
双语例句
1. Finally, the author predicted the future trend of America's Unilateralism objectively.
最后, 客观地预测了美国单边主义的未来走向.
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2. The struggles between multilateralism and unilateralism kept on going in the UN.
联合国内多边主义与单边主义的斗争持续不断.
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3. Otherwise, any criticism would be blindness, or have unilateralism.
否则任何批评将是无的放矢, 难免会有一定的片面性和盲目性.
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4. In a sense, Unilateralism is another reprint of the hegemonism.
一定意义上讲, 单边主义是霸权主义的另一翻版.
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5. Secondly, it analyzes and makes comments on unilateralism of both sides.
