IPA: /ˌɪn.təˈsaɪ.ə.təl/
KK: /ɪnˌtɜr səˈaɪ təl/
Relating to or occurring between different societies.
The intersocietal dialogue helped improve understanding among various cultures.
Intersocietal → It is formed from "inter-" (meaning between) and "societas" (from Latin, meaning society). The word describes something that occurs between different societies.
Think of things happening 'between' ('inter-') different 'societies' ('societas') — that's what intersocietal means.
No commonly confused words.