providential
adjective /ˌprɒvɪˈdenʃl/
  /ˌprɑːvɪˈdenʃl/
(formal)- lucky because it happens at the right time, but without being planned天缘巧合的;及时的;适时的 - A providential wind carried the raft to the shore.幸运的风把木筏吹到了岸边。 
- The announcement seems providential at a time when good news is in short supply.在好消息供不应求的时候,这一宣布似乎是天意。 
 词源mid 17th cent.: from providence, on the pattern of evidential.
- A providential wind carried the raft to the shore.