Pernicious
— having a harmful effect; destructive
Pernicious describes something that has a harmful, damaging, or destructive effect, especially in a gradual or subtle way that is not immediately obvious. What makes pernicious damage particularly dangerous is that it often works quietly — by the time the harm is visible, it may be too late to reverse.
The word is used to describe influences, habits, ideas, or substances that corrode, weaken, or destroy over time. A pernicious rumour slowly ruins a reputation; a pernicious ideology gradually erodes social trust. The key element is hidden, insidious destructiveness.
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Memory Mnemonic
PERks NICE US
The keyword PERks NICE US comes from how Pernicious sounds when spoken aloud. This pronunciation connection makes it easy to recall the keyword whenever you hear or see the word.
Memory Link
The children were given PERKS to be NICE to US—but this bribery was having a harmful effect, completely destructive to their character!
Picture children being given PERKS to be NICE to US — free sweets, treats, rewards for every good behaviour — but this bribery is having a deeply harmful effect on their character, quietly destroying their ability to do good for its own sake. PERks NICE US gives you the keyword, and the image of a seemingly positive practice that is actually destructive underneath captures the meaning of pernicious. Visualise the children smiling as they collect their rewards, unaware that their moral foundation is being slowly corroded from within.
HOW TO MEMORIZE VOCABULARY
There are 3 steps to effectively memorising vocabulary.
Step 1: Derive a keyword from the word based on how the word is spelled or pronounced. Next time you see the word, you will be able to derive the keyword from it because it is based on the word.
Step 2: Form a visual memory link that connects the keyword and the meaning(s) of the word you are learning.
Step 3: Ensure to Visualise the image, see it in your imagination. This is important even if it takes a few seconds.
Usage Examples
- The pernicious effects of misinformation became apparent only after the damage to public trust was irreversible.
- Smoking has a pernicious impact on health, quietly destroying lung tissue over years before symptoms appear.
- The pernicious influence of corruption had hollowed out the institution from within.
- Critics called the new policy pernicious, arguing that it would disproportionately harm vulnerable communities.
- The pernicious myth that talent alone is enough has discouraged countless students from putting in the hard work required.
Etymology of Pernicious
From Latin perniciosus, meaning "destructive" or "ruinous," derived from pernicies (destruction, ruin), from per- (thoroughly) + nex/necis (death, killing). The Latin roots reveal the full force of the word — something pernicious does not merely inconvenience, it thoroughly destroys.
Synonyms & Antonyms of Pernicious
Synonyms
Antonyms
Common Collocations with Pernicious
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