unconscientious
un·cons·cien·tious
adjective
1.
not conscientious; not guided by a sense of right and wrong
Origin
From un- + conscientious.
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.