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