Sources close to Lindsay tell TMZ ... LiLo was "beyond upset" to see her name on CNN's "Showbiz Tonight" as one of the most provocative celebs of 2010. Lindsay made the top five -- along with Miley Cyrus, Mel Gibson and Charlie Sheen -- but Lady Gaga took the top prize. 

Either Lindsay doesn't know what provocative means ... or she's pissed she lost to Gaga.

Fun fact: Lindsay's also nominated for 'Best Mug Shot' of 2010.