trickproof

English

Etymology

trick +‎ -proof

Adjective

trickproof (comparative more trickproof, superlative most trickproof)

1. Resistant to trickery.
   • 1976, David B. Tinnin, Dag Christensen, The Hit Team, page 9:

     The arrangement was to be trickproof. The second group would not depart from Munich until the first group had safely arrived at its destination, and the third group would not leave until the second had landed safely.