のいくものではなかった

was not satisfactory

→ の
phrase Rare #32,773
was not satisfactory Used after expressions such as 満足のいく (satisfactory) or 納得のいく (convincing) to say that something did not meet expectations or was not acceptable. The present form is のいくものではない.
JA: その結果は、決して満足のいくものではなかった。
EN: The result was by no means satisfactory.

その結果は全く満足のいくものではなかった

The result was completely unsatisfactory.

彼の説明は納得のいくものではなかった

His explanation was unconvincing.