1) Chaste 2) Unblemished 3) Untainted 4) Untarnished 1) Free from blemishes 2) Free of stigma 3) Having no stain 4) Kind of steel 5) Made of stainless steel 6) Of reputation 7) Spotless 8) Unblemished 9) Unstained 10) Unsullied 11) Untainted 12) Untarnished 
• (a.) Free from stain; immaculate.
1. A trade name given to alloy steel that is corrosion and heat resistant. The chief alloying elements are chromium, nickel and silicon in various combinations with a possible small percentage of titanium, vanadium, etc. 2. By AISI definition, a steel is called 'Stainless' when it contains 4 per cent or more chromium.
Stain'less adjective Free from stain; immaculate. Shak. « The veery care he took to keep his name Stainless , with some was evidence of shame.» Crabbe. Syn. -- Blameless; spotless; faultless. See Blameless . 
[adj] - of reputation
unstained adjective of reputation; `his unsullied name`; `an untarnished reputation`
having no stain; spotless. · made of stainless steel. · resistant to staining, rusting, the corrosive effect of chemicals, etc.
An alloy of carbon and iron that has a minimum chromium content of 10.5 percent