noun
Political term for a foreign policy approach where a nation acts independently without seeking agreement from other countries.
その国のユニラテラリズムは国際社会から批判された。
That country's unilateralism was criticized by the international community.
Japanese equivalent of unilateralism, more formal and kanji-based, while ユニラテラリズム is a direct loanword often used in political contexts.
Borrowed from English 'unilateralism'.