Complex
Complex adjective - Having many parts or aspects that are usually interrelated.
Intelligent and complex are semantically related. In some cases you can use "Intelligent" instead an adjective "Complex".
Intelligent
Intelligent adjective - Having or showing quickness of mind.
Complex and intelligent are semantically related. Sometimes you can use "Complex" instead an adjective "Intelligent".
Mutual synonyms
Both words in one sentence
- Asimov disliked what he called "robot-as-pathos" stories, preferring to see robots as highly complex and intelligent tools.
Source: Humanity Is Infectious -
Techno Babble: Complex or intelligent-sounding explanations meant to convey the appearance of technical depth to the story universe, but doesn't have to make any sense whatsoever.
Source: Just For Fun / Tropes of Legend -
Fat Best Friend: Vetch, although he is more intelligent and complex than most examples of this trope Feminist Fantasy: In the later books, from Tehanu on, Le Guin re-examines the setting and its assumptions (such as that wizards must all be male and celibate) with a feminist eye.
Cite this Source
Intelligent and Complex. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/complex/intelligent
Complex & Intelligent. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/complex/intelligent>.
Intelligent or Complex. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/complex/intelligent.
Google Ngram Viewer shows how "complex" and "intelligent" have occurred on timeline