Unconscientious

adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Not conscientious.

    "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."

Adjective
  1. 1
    not conscientious wordnet

Synonyms

All synonyms
consciencelessamoralcorruptcorruptedcriminalcrooked

Example

More examples

"How can someone be so unconscientious?"

Etymology

From un- + conscientious.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.