This is the 13437th most frequent Swedish word.
uppskattande
Appreciative.
Here 'uppskattande' is used as an adjective to describe the nature of a smile, implying that the person valued or was pleased by the news.
Han gav ett uppskattande leende när han hörde nyheterna.
He gave an appreciative smile when he heard the news.
In this sentence, 'uppskattande' serves as an adjective describing the tone of her comment, indicating that it was positive and acknowledging the value of something.
Hennes kommentar var väldigt uppskattande.
Her comment was very appreciative.
Here 'uppskattande' modifies the manner of expression, showing that the way of speaking acknowledged and valued his efforts.