unwashable

the shirt was permanently unwashable after the dye incident.

the unwashable stain on the carpet was a real problem.

we accidentally used an unwashable sealant on the countertop.

the unwashable grease stain ruined the favorite sweater.

the unwashable paint protected the wall from graffiti.

it was an unwashable marker, so we couldn't remove it.

the unwashable coating made the car easier to clean.

we needed an unwashable adhesive for the permanent display.

the unwashable ink on the document was a security feature.

despite scrubbing, the unwashable residue remained visible.

the unwashable film protected the surface from damage.