tamperproof

or tam·per-proof

[ tam-per-proof ]
/ ˈtæm pərˌpruf /

adjective

that cannot be tampered with; impervious to tampering: a tamper-proof lock.

QUIZZES

BECOME A PRO CHEF WITH THIS EXQUISITE CUISINE QUIZ!

Even if you can't be a professional chef, you can at least talk like one with this vocabulary quiz.
Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?

Origin of tamperproof

First recorded in 1885–90; tamper1 + -proof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020