Answer:
[ turn away in avoidance ]
Avert
[ Stray or depart ]
Deviate
[ unable to be altered/changed ]
Irrevocable
[ firmly fixed in place ]
Steadfast
[ marked by being loud excited and, possibly destructive ]
Tumultuous
Once the plane took off toward Paris, what I had done was _irrevocable_ - there was no looking back anymore.
There was a _tumultuous_ sound in the alley, where a group of stray alley cats were fighting over a mouse
When asked, "should we _deviate_ from the course we are on?", the captain of the ship replied "no".
(I'm not giving you my sentences sowwy)
Hope this helped! xox