General Antagonism:
* Adversarial: Implies a structured conflict, like between opposing sides in a debate.
* Antagonistic: Describes a relationship characterized by opposition or hostility.
* Bellicose: Stronger than hostile, suggests a desire for conflict.
* Discordant: Implies a lack of harmony or agreement, can be emotional or intellectual.
Negative Emotion:
* Aversion: Strong dislike or repugnance.
* Animosity: Deep-seated ill will or resentment.
* Enmity: Bitter, deep-seated hatred.
* Malevolence: The desire to harm or inflict suffering.
Aggressive Actions:
* Hostile: This word is already abstract enough! It refers to the state of being hostile, rather than specific actions.
* Aggressive: More focused on physical or verbal attacks.
* Belligerent: Ready and willing to fight.
Context is Key:
The best word for you depends on the context. Are you describing a relationship, a feeling, or an action? Are you looking for a general term or a specific one?
For example:
* "The adversarial relationship between the two countries made diplomacy difficult."
* "The animosity between the former friends was palpable."
* "The aggressive tone of the letter made it clear that they were serious about their demands."
Consider the nuances of each word and choose the one that best fits your meaning.