Complex
Complex adjective - Having many parts or aspects that are usually interrelated.
Highly developed and complex are semantically related. In some cases you can use "Highly developed" instead an adjective "Complex".
Highly developed
Complex and highly developed are semantically related. Sometimes you can use "Complex" instead an adjective phrase "Highly developed".
Mutual synonyms
Both terms in one sentence
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While many planets have only one city of interest to starfarers they often have a highly developed civilizations and complex local politics that has only tangential relation with interstellar goings-on.
Source: Tabletop Game / Traveller - Pick any nation you like, and if you bother to do the research, you will find a complex society with all the trimmings: a working economy, clearly defined values and morals, a deep religion, a highly developed language, and a well-developed justice system.
Source: The Theme Park Version
Cite this Source
Highly developed and Complex. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/complex/highly_developed
Complex & Highly developed. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/complex/highly_developed>.
Highly developed or Complex. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/complex/highly_developed.
Google Ngram Viewer shows how "complex" and "highly developed" have occurred on timeline