unspottable

English

Etymology

un- +‎ spottable

Adjective

unspottable (comparative more unspottable, superlative most unspottable)

1. That cannot be seen or spotted; invisible.
2. Resistant to staining by spotting.
   • 1904, Womanhood, volume 11, page 56:

     As probably most of my readers know, it is a process which renders quite unspottable by rain or water any dress material submitted to it […]