tamperproof

or tam·per-proof

[ tam-per-proof ]
/ ˈtæm pərˌpruf /

adjective

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

Origin of tamperproof

First recorded in 1885–90; tamper1 + -proof

Words nearby tamperproof

tampala, tamper, tamper with, tamper-resistant, tampere, tamperproof, tampico, tampico hemp, tamping, tampion, tampon