De or het consumptisme?

The correct Dutch article is:

het consumptisme

Rule Words ending in -isme: almost always het. See the rule
Meaning (Dutch) grote drang tot consumeren, consumentisme

How to use consumptisme

the consumptismehet consumptisme
this consumptismedit consumptisme
that consumptismedat consumptisme
our consumptismeons consumptisme
your consumptismejouw consumptisme
every consumptismeelk consumptisme
which consumptisme?welk consumptisme?
a big consumptisme / the big consumptismeeen groot consumptisme, het grote consumptisme

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).