pernicious

• Even if the problem is pernicious, and as intractable as racism. —  Nate Silver: Does race affect votes?
• Privileges based on position and property have always seemed to me unjust and pernicious, as did any exaggerated personality cult .... —  Progressive Bloggers
• It is based on a failure to recognize the different cultural and political assumptions that have profoundly affected the "American mind" over the past forty years, pernicious, anti-democratic assumptions that are antithetical to the —  CapeCodToday Blog Chowder
• What makes the trend particularly pernicious is the fact that mobile devices are almost always specific to one subscriber, allow for consumers to be tracked in real-time and are capable of supporting multiple communication types such as voice, data and multimedia services. —  Latest from Computerworld
• Thus, I may be liberal and be against American liberals, and I may care about my fellow human beings but abhor socialism, but so pernicious is the Unspeak that those become difficult points to get across. —  thecookscottage

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context