IPA: /ˌjuːnɪˈlætəˌrəlɪzəm/
KK: /ˌjunɪˈlɛtərəlɪzəm/
A way of handling international relations where a country acts on its own without seeking agreement or cooperation from other countries, even those it is allied with.
The country's unilateralism in trade negotiations led to tensions with its partners.
Unilateralism → It is formed from "uni-" (meaning one) and "lateral" (from Latin "lateralis", meaning side). The term describes a policy or action taken by one side or party, emphasizing a single perspective or approach.
Think of 'one' ('uni-') side ('lateral') acting independently — that's what unilateralism means.