He lived in Paris for a while but saw the unavoidability of German invasion.
From the en.wikipedia.org
Imaginative, intelligent, challenging, funny, beautifully acted, unpredictable, a joyful glorying in the inevitability, the unavoidability, of artificiality.
From the guardian.co.uk
Due to the nature of the reality and the unavoidability of the future, everything that currently exists and will exist is temporary and will come to an end.
From the en.wikipedia.org
Notably he was the first to use discharging for proving the theorem, which turned out to be important in the unavoidability portion of the subsequent Appel-Haken proof.
From the en.wikipedia.org
More examples
Ineluctability: the quality of being impossible to avoid or evade