insidious

adjectives

beguiling but harmful
"insidious pleasures"
is derived from
is similar to
tending to entice into a desired action or state
intended to entrap
is derived from
is similar to
involving or causing danger or risk; liable to hurt or harm
"a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"
working or spreading in a hidden and usually injurious way
"glaucoma is an insidious disease"; "a subtle poison"
is derived from