Kelime: du·bi·ous Söyleniş:'dü-bE-&s also dyü- İşlev:adjective Kökeni: Latin dubius, from dubare to vacillate; akin to Latin duo two -- more at TWO 1 : giving rise to uncertainty: as a : of doubtful promise or outcome a dubious plan b : questionable or suspect as to true nature or quality the practice is of dubious legality the dubious honor of being the world's biggest polluter 2 : unsettled in opinion : DOUBTFUL I was dubious about the plan synonym see DOUBTFUL - du·bi·ous·lyadverb - du·bi·ous·nessnoun