Complex and Complicated

Complex

Complex adjective - Having many parts or aspects that are usually interrelated.
Usage example: complex issues regarding free speech and school discipline

Complicated is a synonym for complex in characteristic topic. In some cases you can use "Complicated" instead an adjective "Complex", when it comes to topics like property, simple, abstruse, involved. popular alternative

Complicated

Complicated adjective - Having many parts or aspects that are usually interrelated.
Usage example: a complicated apparatus

Complex is a synonym for complicated in characteristic topic. You can use "Complex" instead the word "Complicated" as an adjective or a noun, if it concerns topics such as property, composite, simple, abstruse. popular alternative

Nearby Words: complex, complication, complicating, complicative
Cite this Source
Complicated and Complex. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/complex/complicated
Complex & Complicated. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/complex/complicated>.
Complicated or Complex. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/complex/complicated.
Google Ngram Viewer shows how "complex" and "complicated" have occurred on timeline