Construct a sentence using the word "acrimonious" properly.
The once-close siblings had an acrimonious falling out and didn't speak to each other for years.
Complete the following task based on the instruction and optional input provided.### Instruction:
Construct a sentence using the word "acrimonious" properly.

### Output:
The once-close siblings had an acrimonious falling out and didn't speak to each other for years.