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Synonyms

complicated

American  
[kom-pli-key-tid] / ˈkɒm plɪˌkeɪ tɪd /

adjective

  1. composed of elaborately interconnected parts; complex.

    complicated apparatus for measuring brain functions.

  2. difficult to analyze, understand, explain, etc..

    a complicated problem.

    Synonyms:
    knotty, tangled, involved

complicated British  
/ ˈkɒmplɪˌkeɪtɪd /

adjective

  1. made up of intricate parts or aspects that are difficult to understand or analyse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of complicated

First recorded in 1640–50; complicate + -ed 2

Explanation

When things get complicated, they are no longer simple and straightforward. If you are asked a question that would require a long, detailed answer, you might just say, "It's complicated." The word complicated came about in the 1640's to mean "tangled" or "difficult to unravel." This makes sense, considering it came from the Latin verb complicāre, meaning "to fold together." Consider that something with many folds is more complicated than something flat. Novelist Robert Ludlum said, "Life is extremely complicated," but Confucius long ago suggested that "Life is really simple, but we insist on making it complicated." Just having those two opposing viewpoints indicates how complicated life can be.

Keep Reading on Vocabulary.com

Vocabulary lists containing complicated

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Complicated though it may seem, the fancy-dress code does enhance the formality of the experience.

From The Wall Street Journal • Oct. 9, 2025

Taylor tore herself in two to make the follow-up, A Complicated Woman, which comes out on Friday.

From BBC • Apr. 18, 2025

Complicated by other factors such as inadequate access to healthy food and lower physical activity, over half of patients with bipolar depression and schizophrenia are overweight or obese.

From Reuters • Aug. 3, 2023

“Inside the Complicated Reality of Being America’s Oldest President,” was the headline, apparently written by Franz Kafka.

From Washington Times • Jun. 5, 2023

“That should be in caps, right? Complicated Thing.”

From "What If It's Us" by Becky Albertalli and Adam Silvera