English version

tamper-proof

From Longman Dictionary of Contemporary Englishtamper-proofˈtamper-proof adjective 🔊 🔊 BBTa package or container that is tamper-proof is made in a way that prevents someone from opening it before it is sold
Examples from the Corpus
tamper-proofPart of the program would require states to develop more tamper-proof birth certificates and drivers licenses.Wilson says he is only advocating a tamper-proof card for those seeking public services.The authorities reacted by ruling that tamper-proof electronic cash registers must be used.
From Longman Business Dictionarytamper-proofˈtamper-proof adjective1a package or container that is tamper-proof is made in a way that prevents people from opening it before it is sold SYN TAMPER-RESISTANT2impossible to change or spoiltamper-proof bar code labels
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