Toxically is an adverb that refers to something or someone that is poisonous, deadly, or harmful in nature. There are multiple synonyms for the term 'toxically' that can be used in different contexts, such as dangerously, harmfully, destructively, noxiously, deadly, venomously, poisonously, insidiously, detrimentally, perniciously, and injuriously. Each word indicates some level of harm that an individual or a substance can cause and can be used interchangeably depending on the context. So, instead of using the term 'toxically,' people can select a more appropriate synonym to precisely convey the meaning they intend to express.