insidioso înseamnă în Engleză

captious▼(that captures misleadingly)
adjective
[UK: ˈkæp.ʃəs] [US: ˈkæp.ʃəs]

insidious▼(producing serious harm in a stealthy, often gradual, manner)
adjective
[UK: ɪn.ˈsɪ.dɪəs] [US: ˌɪn.ˈsɪ.diəs]What an insidious assumption! = Che supposizione insidiosa.

nasty [nastier, nastiest]▼(grave or dangerous)
adjective
[UK: ˈnɑː.sti] [US: ˈnæ.sti]

tricky [trickier, trickiest]▼(hard to deal with)
adjective
[UK: ˈtrɪk.i] [US: ˈtrɪk.i]