Cancer is the most pernicious, insidious, disgusting disease of life.
It is subtle, insidious, and never more dangerous than when women passionately deny that they themselves are engaging in it.
To promote the insidious—“rape is hilarious”—is to join the crime at its own filthy level.
insidious in·sid·i·ous (ĭn-sĭd'ē-əs)
Being a disease that progresses with few or no symptoms to indicate its gravity.