phlegmatic

flegmaattinen Not easily excited to action or passion; calm; sluggish.
{{quote-book
2013, A.O. Scott, “How It Looks to Think: Watch Her,” Rev. of w:Hannah Arendt (film)|Hannah Arendt, dir. by Margarethe von Trotta, New York Times 29 May 2013: C1. Print.

Their friendship (immortalized in a splendid volume of letters that has clearly served as one of Ms. von Trotta's sources) is a fascinating study in cultural and temperamental contrast, an impulsive and witty American paired with a steady, phlegmatic German.

(ux)

cold and phlegmatic habitations