English edit

Etymology edit

un- +‎ conscientious

Adjective edit

unconscientious (comparative more unconscientious, superlative most unconscientious)

  1. Not conscientious.
    • 1506, John Addington Symonds, The Life of Michelangelo Buonarroti[1]:
      This enabled an unconscientious builder to furnish bulky architectural masses, which presented a specious aspect of solidity and looked more costly than they really were.