adjective🔗ShareCausing much harm in a subtle way."The gossip spread through the school quickly, a pernicious influence that damaged many friendships. "negativemoralcharacterattitudetendencyqualitysituationconditionChat with AIVocabulary GamePractice Reading
adjective🔗ShareCausing death or injury; deadly."The pesticide was pernicious, causing the death of many garden birds. "medicinediseasenegativebodyChat with AIVocabulary GamePractice Reading
