insidia significa in inglese

pitfall [pitfalls]▼(potential problem, hazard, or danger)
noun
[UK: ˈpɪt.fɔːl] [US: ˈpɪt.ˌfɒl]

snare [snares]▼(mental trap)
noun
[UK: sneə(r)] [US: ˈsner]

undermine [undermined, undermining, undermines]▼verb
[UK: ˌʌn.də.ˈmaɪn] [US: ˈʌn.dər.ˌmaɪn]