\Ma*te"ri*al*ly\, adv. 1. In the state of matter. I do not mean that anything is separable from a body by fire that was not materially pre["e]xistent in it. --Boyle. 2. In its essence; substantially. An ill intention is certainly sufficient to spoil . . . an act in itself materially good. --South. 3. In an important manner or degree; essentaily; as, it materially concern us to know the real motives of our actions.