Not straightforward
Synthetic and not straightforward are semantically related. In some cases you can use "Synthetic" instead an adjective phrase "Not straightforward".
Synthetic
Synthetic adjective - Produced by humans rather than natural processes.
Not straightforward and synthetic are semantically related. Sometimes you can use "Not straightforward" instead an adjective "Synthetic".
Cite this Source
Synthetic and Not straightforward. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/not_straightforward/synthetic
Not straightforward & Synthetic. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/not_straightforward/synthetic>.
Synthetic or Not straightforward. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/not_straightforward/synthetic.
Google Ngram Viewer shows how "not straightforward" and "synthetic" have occurred on timeline