unstained

definition: (of reputation) free from blemishes
example:
speech part: adjective
synonyms: stainless
definition: not stained
example: An apron keeps your clothing unstained in this messy line of work.
speech part: adjective
synonyms:
definition: without soil or spot or stain
example:
speech part: adjective
synonyms: unsoiled unspotted
definition: not having a coating of stain or varnish
example:
speech part: adjective
synonyms: unvarnished

How unstained is being used?