disputative

On the witness stand, Mr. Page was a less voluble man, uncertain and disputative in the face of questioning by an attorney for Oracle.

There, now," said Catherine, disputatively, "said I not 'twas all unlike my girl to seek her unbeknown to me.

He passed through Scotland in a disputative vein, which could not have made him a popular traveller. 

His prefaces have been too disputative, his plays too epigrammatic, for the cultivation of prose rhythms.

And his disputative countenance changed to a pleasant expression.