← Dictionary

deontology

/ˌdiː.ɒnˈtɒl.ə.dʒi/
IELTSAcademic
noun

A moral theory that says actions are right or wrong based on duties and rules, not only on results. It focuses on what people should do.

  • Deontology says some actions are wrong, even if they help people.
  • Her ethics class compared deontology and utilitarianism.
  • He follows deontology when making strict workplace decisions.

Adinary Nuance

Deontology is often compared with utilitarianism and consequentialism. Those theories judge actions by results, but deontology judges them by duty, rules, or principles. Writers choose this word when they want a more exact term than just “ethics” or “morality.”

In other languages

Vietnamese
đạo đức bổn phận
Spanish
deontología
Chinese
道义论
Japanese
義務論
Korean
의무론

Etymology

The word comes from Greek deon, meaning “duty,” and -logy, meaning “study.” It entered English in the 19th century in philosophy.

Common phrases

deontological ethicsdeontological theorya deontological view

Synonyms

Related words

Frequently asked questions

Is deontology a common word in English?
It is not common in daily speech. You will see it mainly in philosophy, law, and academic writing.
What is the difference between deontology and utilitarianism?
Deontology focuses on duty and rules. Utilitarianism focuses on the results of an action.
Can I use deontology in business writing?
Yes, but mostly in formal or academic business writing. It sounds too technical for everyday email.
How do I use deontology in a sentence?
Use it as a noun: “The course covers deontology and moral responsibility.”