Demodulate refers to the process of extracting the original signal from a modulated carrier wave. Antonyms for demodulate include demodulate which means to modulate a signal, or to transform a signal into a modulated form. Other antonyms include encode which involves transforming information into a code, encrypt which is the process of converting information into a secret code, or scramble which means to jumble or mix up a signal. Opposite to demodulating is also to modulate or to change the characteristics of the carrier wave to transmit the necessary information. Other antonyms for demodulate are distort, corrupt, and disrupt, all of which subvert the original signal in some way.