What is an antonym for ambience?

There isn't a single perfect antonym for "ambience" because it's a complex word with multiple connotations. However, depending on the context, some good options include:

General opposites:

* Austerity: This emphasizes starkness and lack of comfort or pleasantness.

* Desolation: This highlights a feeling of emptiness and lack of life.

* Discord: This focuses on a lack of harmony and unpleasantness.

* Gloom: This implies a depressing and negative atmosphere.

More specific opposites:

* Noise: If "ambience" refers to a calming or peaceful atmosphere, noise would be its opposite.

* Chaos: If "ambience" refers to order and organization, chaos would be its opposite.

* Clutter: If "ambience" refers to a clean and spacious feeling, clutter would be its opposite.

* Harshness: If "ambience" refers to softness or gentleness, harshness would be its opposite.

The best antonym for "ambience" will depend on the specific meaning you're trying to convey.