Radioactively is a word commonly used to describe something that is contaminated with radiation or implies the release of energy through nuclear reactions. However, there are several synonyms that can be used instead of radioactively. Words such as radiologically, isotopically, and nukily could be used as alternatives to radioactively. Other synonyms include radioactively contaminated, radioactive isotopes, and atomic energy. Additionally, the word radiogenic could be used to imply the production of radiation through natural processes. These synonyms can provide variety to writing or discussions related to nuclear energy, environmental pollution, and the effects of radiation on living organisms.