spotlessly russian

• добела́

  till is white, till is spotlessly clean

• криста́льно

  transparently, clearly, purely, immaculately, spotlessly, pristinely

• непорочно

  immaculately, spotlessly, blamelessly

Examples

• У неё всегда чистенькая кухня.

  Her kitchen is always spotlessly clean.

• Бабушка стирала полотенца добела.

  Grandma washed the towels until they were spotlessly clean.