The antonyms for the phrase "made noise" are numerous and diverse. One could describe the opposite of making noise as being quiet, silent, hushed, soundless or muted. The absence of noise can also be expressed using terms such as peaceful, tranquil, calm, serene, undisturbed or still. Additionally, one could opt to use words that suggest that no noise was created, such as unvoiced, unsounded, or unarticulated. Depending on the context, one might also consider the antonyms of 'made noise' to include staying quiet, whispering, murmuring, or simply staying soundless. In conclusion, the variety of antonyms for "made noise" demonstrate the many ways in which silence and auditory asceticism can be expressed.