IPA: /ˈtæmpərˌpruːf/
KK: /ˈtæmpərˌpruf/
This word describes something that is made to stop people from changing or interfering with it, ensuring that it remains secure and unchanged.
The new security seals on the packages are tamperproof, so customers can be sure they haven't been opened.
Tamperproof → It is formed from "tamper" (originating from Middle English *tamperen*, meaning to interfere or meddle) and "proof" (from Old French *proef*, meaning to test or to prove). The word "tamperproof" means designed to prevent interference or unauthorized access.
Think of something that is made to stop people from 'interfering' ('tamper') and is 'tested' ('proof') to ensure its security.