I want this room spotless by the time I get back.
The house appeared to be spotless.
The kitchen was spotless after Marie finished cleaning it.
His wife was incredibly house proud and their home was immaculately clean.
Spotless
The only concrete noun in your sentence is sentence. Note: The noun 'sentence' is a concrete noun only for a written or spoken sentence; the noun 'sentence' as a word for a penalty imposed for a crime conviction is an abstract noun.
With the exception of not capitalizing the 'y' at the start of the sentence, it is a correct sentence.
My room is spotless
The kitchen was spotless after Marie finished cleaning it.
Spotless is an adjective.
Spotless could replace impeccable in that sentence.
The population of Spotless Group is 400.
Spotless Group was created in 2005.
Spotless Crake was created in 1789.
Clean, spotless
Spotless - 2013 was released on: USA: August 2013
The motto of Spotless Group is 'Home care made simple'.
The cast of Spotless - 2013 includes: Aileen Beale as Miriam
The duration of Eternal Sunshine of the Spotless Mind is 1.82 hours.