WordWeb Online

1. Peculiarly fortunate or appropriate; as if by divine intervention
   "a providential recovery"
   - heaven-sent, miraculous
    
2. Relating to or characteristic of providence
   "assumption that nature operates only according to a providential plan"
    
3. Resulting from divine providence
   "providential care"; "a providential visitation"
   - divine

See also: fortunate, heavenly, providence, providentially