cattily

/ˈkætɪli/
adverb
  1. In a spiteful, malicious, or sly manner, especially in speech.
    • He smiled cattily as he pointed out her mistake in front of everyone.
    • The review cattily criticized the actor's performance without offering any constructive feedback.
    • She cattily remarked that his new haircut made him look older.
Antonyms
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