Complex
Complex adjective - Complicated in structure; consisting of interconnected parts.
Usage example: a complex mass of diverse laws and customs
Hard is a synonym for complex in property topic. In some cases you can use "Hard" instead an adjective "Complex", when it comes to topics like difficult, complicated.
Mutual synonyms
Both words in one sentence
- A person's nature may be more complex and hard-to-understand than initially taken for.
Source: I Know Your True Name -
The term non-Euclidean here is meant to be a hint of how complex and hard or impossible to understand this geometry is, rather than a strict description.
Source: Black Box -
Similarly, there are a number of quantitative-minded sociologists who use complex statistical methods that rival those of the hard sciences in their own research.
Source: Hard on Soft Science
Cite this Source
Hard and Complex. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/complex/hard
Complex & Hard. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/complex/hard>.
Hard or Complex. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/complex/hard.
Google Ngram Viewer shows how "complex" and "hard" have occurred on timeline