doubtful that something should be relied upon — as in "The argument relies on a dubious assumption."
doubtful that something is morally proper — as in "The company is accused of using dubious sales practices to influence minors."
bad or of questionable value — as in "The state has the dubious distinction of the highest taxes."
doubtful or uncertain — as in "She is dubious about making the change."
Stop making dubious literature about the Berbers and the old Iberians and admit that you have liked to kill as all who are soldiers by choice have enjoyed it at some time whether they lie about it or not.
Chapter 23 (93% in)
There are no more uses of "dubious" in For Whom the Bell Tolls.