The paper examines the relationships between language, discrimination, and constitutional democracy. Hinging on the ability of words to shape and, sometimes, distort reality, the paper delves into the historical roots of linguistic discrimination, especially against women. It then goes on considering the new challenges posed by the advancements in technology and artificial intelligence. Within this framework, two themes emerge: the importance of language during the drafting of the Italian Constitution and the broader philosophical discourse about the limits of tolerating intolerance, recalling Karl Popper’s theory. The Author argues that constitutional democracies must equip themselves with tools to counter intolerance, including strategies to tackle hate speech in light of specific forms of linguistic discrimination. In conclusion, the paper warns against the rise of intolerance within anti-discriminatory movements, remarking the paradox of suppressing free expression in the name of combating discriminations.