Pernicious
adj. /pəˈnɪʃəs/ (پَرنِشَس)Having a harmful effect, especially in a gradual or hard-to-notice way.
Pernicious Meaning in Urdu
In everyday Urdu, pernicious describes something that damages slowly and quietly, often before anyone notices.
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1
Causing gradual, serious harm, often without being immediately obviousبتدریج اور خاموشی سے نقصان پہنچانے والا
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2
(of a disease) severe and difficult to stopمہلک (بیماری کے لیے)
Unlike “dangerous,” which can describe sudden threats, “pernicious” almost always suggests a slow, creeping kind of harm — a pernicious habit, belief, or influence.
Word Details
| Word | Pernicious |
| Part of Speech | Adjective |
| CEFR Level | C1 |
| Difficulty | Difficult |
| Urdu Meaning | مہلک، بتدریج نقصان دہ |
| English Meaning | Causing serious harm gradually, often unnoticed |
| Pronunciation | /pəˈnɪʃəs/ |
| Word Type | Formal adjective, negative connotation |
| Commonness | Common in academic, medical, and social commentary writing |
Pronunciation
Simple English Explanation
Use “pernicious” for something harmful in a slow, hidden way — a pernicious rumour spreads quietly and damages someone’s reputation over time; a pernicious habit slowly ruins your health.
اردو وضاحت
“Pernicious” ایسی چیز کے لیے استعمال ہوتا ہے جو آہستہ آہستہ اور خاموشی سے نقصان پہنچائے — جیسے کوئی بری عادت یا غلط سوچ جو وقت کے ساتھ تباہی مچائے۔
Example Sentences
Synonyms
Nuance: “Harmful” is neutral and general; “insidious” emphasises that the harm is hidden and spreads gradually; “pernicious” combines both — serious harm that develops slowly, often unnoticed until real damage is done.
Antonyms
Common Collocations
Word Family
| Form | Word |
|---|---|
| Adjective | Pernicious |
| Noun | Perniciousness |
| Adverb | Perniciously |
There is no standard verb form of “pernicious” in modern English.
Pernicious vs Insidious
“Insidious” focuses on how quietly and gradually something spreads or develops without being noticed — an insidious disease progresses without obvious symptoms.
“Pernicious” focuses more on the seriousness of the eventual harm, whether or not it started quietly — a pernicious effect is genuinely damaging, and the word is often used together with “insidious” to describe something that spreads unnoticed and causes real damage.
Common Mistakes
✓ Years of pernicious soil erosion slowly destroyed the region’s farmland.
Pernicious describes gradual, often hidden harm — not sudden, obvious destruction.
IELTS Usage
Writing: Strong word for Task 2 essays on social issues — misinformation, addiction, corruption, environmental damage.
Speaking: Less common in speaking; simpler words like “harmful” or “damaging” are usually safer.
Example: “The pernicious spread of misinformation on social media poses a long-term threat to informed public debate.”
MDCAT / Academic Usage
In medical and MDCAT contexts, “pernicious” is most famous in the term “pernicious anaemia,” a serious blood disorder caused by vitamin B12 deficiency — one of the few genuinely technical medical uses of this word.
Word Origin / Etymology
From Latin perniciosus, from pernicies (“destruction, ruin”), combining per- (thoroughly) and necis (death, destruction). The word has carried a sense of serious, thorough harm since it entered English in the 14th century.
Memory Tip
Think “per” (thoroughly) + hints of “nix” (destroy) — pernicious harm is thorough and often deadly serious, even if it creeps in slowly.
Mini Quiz
1. Meaning of “pernicious”:
2. Correct sentence:
3. Antonym of “pernicious”:
4. Medical term famously using this word:
5. Which best fits “pernicious”:
6. Noun form:
Score: 0 / 6
FAQs
What is the meaning of pernicious in Urdu?
Pernicious means مہلک، بتدریج نقصان دہ — describes something causing serious harm gradually, often without being noticed at first.
Is pernicious a noun, verb, or adjective?
Adjective; the noun form is perniciousness and the adverb is perniciously.
What are the synonyms of pernicious?
Harmful, destructive, insidious, and deleterious — each explained above with its nuance.
What is the opposite of pernicious?
Beneficial, harmless, and wholesome.
What does pernicious mean medically?
Most notably used in “pernicious anaemia,” a serious blood condition caused by vitamin B12 deficiency.
Is pernicious useful for IELTS?
Yes, especially in Task 2 essays about social or health issues, as explained in the IELTS Usage section above.