Nefarious

Pronunciation: /nɪˈfɛəriəs/

adjective

Difficulty: Intermediate

Definition of Nefarious

Wicked, villainous, or criminal; extremely immoral or evil.

Origin of Nefarious

Language of origin: Latin

Root word: nefarius

Original meaning: wicked, abominable

From Latin "nefarius" meaning "wicked, abominable," from "nefas" (wrong, sin)

How to Remember Nefarious

Sounds like "ne-FEAR-ious" — so evil it inspires fear in others.

Synonyms for Nefarious

  • wicked
  • evil
  • villainous
  • criminal
  • sinister
  • heinous

Antonyms of Nefarious

Nefarious in a Sentence

  1. The nefarious scheme to defraud investors was uncovered by federal agents.
  2. Comic book villains are often portrayed with nefarious plans for world domination.
  3. The company engaged in nefarious practices that exploited vulnerable communities.

Usage Notes

Used to describe actions, schemes, or people of extreme wickedness. Stronger than simply "bad" or "wrong."

Why Nefarious Matters for GRE & SAT

Common in GRE Reading Comprehension passages describing villains, corruption, or unethical behavior. Often contrasted with benevolent or virtuous.

Word Family

nefariously (adverb)
in a nefarious manner
nefariousness (noun)
the quality of being nefarious
  • malevolent
  • nadir — the absolute lowest point or worst moment
  • naive — showing a lack of experience or judgment
  • narrate — To give an account of events or experiences
  • nascent — in the process of emerging, being born, or starting to develop
  • negate — To make ineffective; to nullify

More Vocabulary Words Starting with N

  • nadir — the absolute lowest point or worst moment
  • nadir — the absolute lowest point or worst moment
  • naive — showing a lack of experience or judgment
  • naive — showing a lack of experience or judgment
  • narrate — To give an account of events or experiences
  • narrate — To give an account of events or experiences
  • nascent — in the process of emerging, being born, or starting to develop
  • nascent — in the process of emerging, being born, or starting to develop
  • negate — To make ineffective; to nullify
  • negate — To nullify; make ineffective