IPA: /ˌæntæɡəˈnɪstɪk/
KK: /æntæɡəˈnɪstɪk/
Describing a situation or behavior where someone is opposed to or hostile towards something or someone else.
The two groups had antagonistic views on the proposed policy changes.
Antagonistic → It is formed from "anti-" (meaning against) and "agonizesthai" (Greek for to struggle or contend). The word describes a state of being in opposition or conflict, as if struggling against something.
Think of being 'against' ('anti-') something and 'struggling' ('agonizesthai') with it — that's why antagonistic means being in opposition.