malignant

• By them he has been described as a malignant imp: was often spoken of for his pranks by the worthy housewives of the neighbourhood, as “Mrs Byron's crockit deevil,” and generally disliked for the deep vindictive anger he retained against those with whom he happened to quarrel. —  The Life of Lord Byron
• She noted distantly how Nigel had quietly stepped between her and the enemy as soon as she lowered her bow, raising his heater-shaped shield, a last bolt hit it, and sank an inch deep into the tough bullhide and wood, quivering like a malignant wasp. —  Map.html
• We wish the name malignant were obsolete and antiquate, if so be the thing itself, which is such a root of bitterness, were extirpated out of the church. —  The Works of the Rev. Hugh Binning
• The path of infection is usually through an abrasion of the skin, and the primary manifestations are local, constituting what is known as the malignant pustule In other cases the disease is contracted through the inhalation of the dried spores into the respiratory passages. —  Manual of Surgery Volume First: General Surgery. Sixth Edition.
• As it resembles an adenoma in structure it is sometimes described as a malignant adenoma_. —  Manual of Surgery Volume First: General Surgery. Sixth Edition.

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context