1. A state of interaction between parties characterized by lack of warmth, cooperation, or goodwill; strained or antagonistic connections
The two countries maintained unfriendly relations for decades.
Os dois países mantiveram relações hostis por décadas.
2. Interpersonal or diplomatic connections marked by coldness, tension, or mutual distrust
After the argument, they had unfriendly relations with each other.
Após a discussão, eles tiveram relações hostis um com o outro.