headwind

Short definition from Wiktionary

Noun

1. 1
   A wind that blows directly against the course of a vehicle, like an aircraft, train, or ship.
2. 2
   A strong force that impedes or reverses progress.

Verb

1. 1
   To blow directly against the course of a vehicle, like an aircraft, train, or ship.
2. 2
   To impede or reverse progress.