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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.

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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.

"My relationship with my mum, it's such a complicated thing," he told the BBC in his most in-depth interview since fleeing his mother.

From BBC • May 13, 2026

California’s economic landscape has further complicated business in the state.

From Los Angeles Times • May 12, 2026

Late last week, it appeared likely that Starmer might survive in the medium term, not least because no plausible challenger seemed ready to tangle with Labour’s complicated rules for ousting a party leader.

From Salon • May 12, 2026

The calculations over when and how much to negotiate have become more complicated now that artificial intelligence and social media can easily amplify such allegations.

From The Wall Street Journal • May 12, 2026

“Face, hair, dress—why is it all so complicated? If I were a bird, I would wear the same feathers every day and no one would think less of me for it.”

From "The Unseen Guest" by Maryrose Wood