What is an antonym for variety?

Here are some antonyms for variety, depending on the context:

General Antonyms:

* Sameness

* Monotony

* Uniformity

* Repetition

* Similarity

* Consistency

* Lack of diversity

* Homogeneity

More Specific Antonyms:

* Limited selection (if referring to a choice)

* Stagnation (if referring to lack of change)

* Boredom (if referring to a lack of excitement)

* Simplicity (if referring to a lack of complexity)

The best antonym will depend on the specific context in which you are using the word "variety".