Back-fence talks refer to casual conversations held between neighbors while leaning on their back fences. Some possible antonyms for back-fence talks include:
1. Formal meetings: Instead of discussing things casually, neighbors can hold meetings to discuss important issues in a more structured and formal setting.
2. Secret meetings: These are meetings held in private where sensitive issues can be discussed without the risk of others overhearing.
3. Online discussions: With the internet, neighbors can communicate and discuss issues through various online platforms such as forums, social media, and email.
4. Public forums: These are public events where neighbors can voice their opinions on a particular topic and engage in a public discussion.
Overall, antonyms for back-fence talks involve more formal or structured communication methods instead of casual conversations.