This is the 13787th most frequent German word.
ergebnislos
Without result; unsuccessful.
The word "ergebnislos" is used here to describe the meeting as having no result or conclusion, underlining its usage as an adjective to denote the absence of outcomes.
Das Treffen war ergebnislos.
The meeting was unproductive.
"Ergebnislos" is applied to indicate that the investigation did not produce any findings, emphasizing the sense of a fruitless outcome.
Nach stundenlanger Suche war die Untersuchung ergebnislos.
After hours of searching, the investigation yielded no results.
In this sentence, "ergebnislos" characterizes the efforts as ultimately futile, exemplifying usage to describe a lack of success.