• IPA: /kəmˈplɛk.sɪ.ti/

complexity

1. (uncountable) The state of being complex; intricacy; entanglement.
2. (countable) That which is and renders complex; intricacy; complication.
   • 1895 October 1, Stephen Crane, chapter 8, in The Red Badge of Courage, 1st US edition, New York: D. Appleton and Company, [https://en.wikisource.org/wiki/Red_Badge_of_Courage_(1895)/Chapter_8#84 pages 84–85]:

     The battle was like the grinding of an immense and terrible machine to him. Its complexities and powers, its grim processes, fascinated him.

• complicacy

• simplicity

• complexus
• complicate

• French: complexité
• German: Vielfalt
• Italian: complessità
• Portuguese: complexidade
• Russian: сло́жность
• Spanish: complejidad

• French: complexité
• German: Komplexität, Schwierigkeit
• Italian: complessità
• Portuguese: complexidade
• Russian: сло́жность
• Spanish: complejidad