He did not want to inform the American people of just how nefarious and reckless banking has become because that might lead to outrage and calls for change which he was steadfastly determined NOT to provide.

No need to see a nefarious plot behind an 84 year old man's attaching the honor to for sacrifice and making hard choices.

Some were too busy with their own front running and other nefarious schemes to pay much attention to Madoff.

Nefarious means evil or plotting harm. Here are some sentences.

• You have spotted my nefarious scheme! (cue maniacal laughter from evil scientist)
• You are nefarious!
• That is a nefarious plot to assassinate the president.

This is a fancy term for evil or wicked. Here are some sentences.

• I overheard the evil scientist explaining his nefarious plans.
• You are a nefarious villain!
• Her nefarious scheme to get revenge shocked me.