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Definitions

complicated

[kom-pli-key-tid] / ˈkɒm plɪˌkeɪ tɪd /
ADJECTIVE
difficult, complex
Synonyms
STRONGEST
arduous convoluted difficult fancy hard intricate knotty perplexing problematic sophisticated troublesome
STRONG
elaborate entangled interlaced involved mixed puzzling
WEAK
Daedalean Gordian abstruse byzantine can of worms gasser high-tech labyrinthine mega factor recondite various wheels within wheels
Antonyms
STRONGEST
easy facile nice plain simple straightforward uncomplicated

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.

Coming up with a 2-nanometer prototype is complicated enough.

From The Wall Street Journal • Apr. 4, 2026

His death has brought a semblance of closure to some of those affected, surfaced complicated feelings in others, and raised many questions.

From BBC • Apr. 3, 2026

Here is a possible timeline for the complicated process of restoring the full international flow of crude oil and liquefied natural gas, as explained by Myra P. Saefong in the Commodities Corner column.

From MarketWatch • Apr. 3, 2026

The move is risky, and it will be quarrelsome — especially for those who still see Zendaya as an idyllic Disney star, despite her respectable penchant for complicated characters.

From Salon • Apr. 3, 2026

There was a big, beautiful, complicated world beyond the horizon.

From "The Wild Robot Protects" by Peter Brown

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.