This is the 10747th most frequent German word.
roser
The word "roser" is not a standard German word. It may be a misspelling or refer to another language.
'roser' is used as an adjective referring to the color pink.
Der Garten war voller roser Büsche.
The garden was full of pink bushes.
Here, 'roser' metaphorically evokes a nostalgic and romantic atmosphere.
Diese alte Technik ist ein roser Gedanke vergangener Tage.
This old technique is a nostalgic thought of bygone days.
'roser' is used in a poetic sense describing the color tone.