Perniciousness(noun)
The quality of being harmful or deadly in a gradual or subtle way.
Hindi meaning:घातकता, विनाशक प्रवृत्ति
Synonyms: Harmfulness, Destructiveness, Malignity, Noxiousness
Antonyms: Harmlessness, Benignity, Innocuousness, Safety
Example: The perniciousness of fake news lies in its ability to spread quickly and mislead people.
Trick to remember: Poisonous + vicious dono milke bane pernicious — matlab kuch aisa jo dheere-dheere nuksan kare. 
Learn it with 19 more words: Daily Vocabulary – 28 October 2025 →
