antimetric adjective4 •The converse of symmetric in electrical network theory, especially filter theory. A network where the input and output image impedances are the dual, or inverse, of each other as opposed to symmetric networks where they are equal.A Butterworth filter with an odd number of elements is symmetric while one with an even number of elements is antimetric. •In mechanics, relating to a pair of forces, a pair of oscillations or other motion acting in the opposite direction to symmetric. •Opposed to metrication. •Going off the rhythm, especially during a transition from one time signature to another.