Before washing, you should remove any nonwashable pieces, such as trims and wooden buttons.    From Wordnik.com.  [A Passion for Knitting] Reference

For nonwashable fabrics, gently sponge the stain with cold water as soon as it occurs and then take to a dry cleaner as quickly as possible.    From Wordnik.com.  [The Royal Guide to Spot and Stain Removal] Reference

Remove nonwashable contaminated materials such as carpeting.    From Wordnik.com.  [All MayoClinic.com Topics] Reference

The paint turned out to be nonwashable, and we’ll just leave it at that.    From Wordnik.com.  [Rules for Secret Keeping] Reference