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3.
word used to talk about a 20th Century Fox movie.
lets go catch a 2th century.
by KillaKan June 20, 2005
 
1.
The years 1901 A.D. to 2000 A.D., identified as the twentieth century of the world since the start of A.D.
The electrical grid in the eastern U.S. was the declared as "the great electrical system of the 20th century". The problem is, this is the 21st century.
by Jon Davis January 14, 2004
 
2.
Old-fashioned and outdated.
My computer is so 20th century.
That music is so 20th century.
His values are so 20th century.
by Arizona Jaguar September 18, 2005