Sentence:  The Istiqlal was still firmly united in 1957 , but the P.D.I. ( Parti Democratique de l'Independance ) , the most <WSD>important</WSD> minor party at the time , objected to the Istiqlal 's predominance in the civil service and influence in Radio Maroc . 
Meaning of the word marked with <WSD> tags:  of great significance or value