What is another word for plain?

The best alternative word for "plain" depends on the context. Here are some options with different connotations:

For simple or basic:

* Simple

* Basic

* Uncomplicated

* Unpretentious

* Modest

* Sparse

* Bare

For lacking decoration:

* Undecorated

* Unornamented

* Unadorned

* Stark

* Dull

* Bland

For lacking flavor:

* Tasteless

* Flavorless

* Unsalted

* Unseasoned

For lacking special qualities:

* Ordinary

* Common

* Typical

* Average

* Unremarkable

For lacking interest:

* Boring

* Dull

* Monotonous

* Tedious

For lacking beauty:

* Ugly

* Homely

* Unattractive

Please provide more context about how you are using the word "plain" so I can suggest the most appropriate alternative.