General antonyms:
* Blunt: This is a very common and direct antonym, meaning straightforward and not tactful.
* Rude: This implies a lack of courtesy and consideration.
* Insensitive: This suggests a lack of understanding or empathy.
* Uncompromising: This refers to an unwillingness to negotiate or concede.
More specific antonyms:
* Aggressive: This implies forceful and confrontational behavior.
* Hostile: This refers to an unfriendly or antagonistic attitude.
* Confrontational: This implies a willingness to directly challenge someone.
* Provocative: This suggests behavior that is likely to cause anger or conflict.
Antonyms in specific contexts:
* In a negotiation: The antonym could be "unyielding" or "uncompromising".
* In a relationship: The antonym could be "confrontational" or "hostile".
The best antonym for "diplomatic" depends on the specific situation and what aspect of diplomacy you are focusing on.