Important; weighty; momentous, and not trifling; as in the phrases “serl-ous bodily harm,” “serious personal Injury,” etc. Lawlor v. People, 74 111. 231; Union Mut. L. Ins. Co. v. wilkinson, 13 wall. 230, 20 L. Ed. 617
Source: Black's Law Dictionary 2nd Ed (1910)
