A better term than "Thread safe"?

community
7

You could refer to them like this:

  1. !Send + !Sync is "not thread-safe at all".
  2. Send + !Sync is "requires synchronization, even for immutable access".
  3. !Send + Sync is "it's a long story".
  4. Send + Sync with &mut self methods is "requires synchronization when writing"
  5. Send + Sync with only &self methods is "thread-safe"