From anti- + tamper. <span class="searchmatch">antitamper</span> (not comparable) Preventing tampering. The bottle had an <span class="searchmatch">antitamper</span> seal....
future contracts with a player, against league rules. Synonym: (UK) tap up <span class="searchmatch">antitamper</span> antitampering tamperer tamper-evident tamperproof untampered witness tampering...