Maleficiently is an adverb that means wickedly or maliciously. Its antonyms would be words that mean the opposite or the absence of those qualities. For instance, benevolently or compassionately would be antonyms for maleficiently. Both words convey positive sentiments, such as kindness, generosity, and goodwill. Other antonyms may include words such as innocently, innocuously, amiably, benignly, and virtuously. These words emphasize ethical and moral values and convey positive traits, such as honesty, integrity, decency, and benevolence. Thus, the use of antonyms can help to impart more precise and nuanced meanings to everyday language, facilitating better communication and understanding.