oncoming

adjective

1. approaching; nearing: the oncoming train; the oncoming holiday season.
2. emerging: the oncoming generation of leaders.

noun

3. approach; onset: the oncoming of winter.

adjective

1. coming nearer in space or time; approaching

noun

2. the approach or onsetthe oncoming of winter

adj.1844, from on + coming, present participle of come (v.).