Containing intricately combined or involved parts.(adjective)
Not easy to understand or analyze. See Synonyms at complex, elaborate.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "complicated" in a sentence
"Basson ascribed the long delay in sorting out the matter to what he described as complicated labour laws."
"Her hair is short and easy, her expression complicated—self-conscious and shy, pleased and patient under the assault of our eyes."
"Hezbollah's chief says they're holding him after what he described as a complicated security operation."