- lacking moral principles; unwilling to adhere to proper rules of conduct.
- not in accord with the standards of a profession: She treated patients outside the area of her training, and the appropriate medical organization punished her unethical behavior.
Origin of unethical
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- not ethical; impropercompanies involved in unethical practices
Word Origin and History for unethically
Online Etymology Dictionary, © 2010 Douglas Harper