improductive

English

Etymology

From im- +‎ productive.

Adjective

improductive (comparative more improductive, superlative most improductive)

1. (rare, chiefly non-native speakers' English) Misconstruction of unproductive.
   • 1816, The Monthly Magazine

     But, as the principal of the loan, or, if you will, the capital lent, is generally consumed in consequence of this transfer, public loans produce an improductive consumption, a destruction of capital.

---

French

Adjective

improductive

1. feminine singular of improductif