1. The state or quality of being complicated or difficult to understand; the condition of having many interconnected parts or elements
The complexity of the human brain is still not fully understood.
A complexidade do cérebro humano ainda não é totalmente compreendida.
2. A complicated or problematic feature or aspect
We need to address the complexities of this legal case.
Precisamos abordar as complexidades deste caso legal.
3. In computing, the degree of difficulty in solving a problem or executing an algorithm
The algorithm has polynomial time complexity.
O algoritmo tem complexidade de tempo polinomial.