Webster 1913 Edition
Absent; lacking; missing; also, deficient; destitute; needy;
as, one of the twelve is.
wanting; I shall not be
Webster 1828 Edition
1.Needing; lacking; desiring.
2.a. Absent; deficient. One of the twelve is wanting. We have the means, but the application is wanting.
3.Slack; deficient. I shall not be wanting in exertion.