Immoderacy refers to the state of being extreme or excessive in one's behavior or actions. Synonyms for this word include extravagance, overindulgence, intemperance, and immoderation. When someone engages in immoderacy, they may be considered indulgent or hedonistic, which are also synonyms for the term. Other synonyms may include recklessness, insatiability, and intemperateness. Essentially, any word that expresses a lack of moderation or self-control can be considered a synonym for immoderacy. It is important to exercise self-control and moderation in life, as immoderacy can often lead to negative consequences.