Adverb
without success
Source: WordNetThe nurses at the hospital tried to soothe me, and they even tried unsuccessfully at one point to return me to Americans. Jessica Lynch
The belief that it is useless to employ partial and palliative means against radical evils, because they only remedy them in part, is an article of faith never preached unsuccessfully by meanness to simplicity, but it is none the less absurd. Theodor Mommsen
The girls got sent to the domestic science room and the boys to the science lab. ... I protested - unsuccessfully. Jocelyn Bell Burnell
I felt this coming. I tried unsuccessfully to assassinate Hitler in 1945. I am not concerned with jurisdiction of the court as Hess or others are. History will show the trials to be necessary. Albert Speer
she tried unsuccessfully to persuade him to buy a new car Source: Internet
101st Airborne zone Map of US landings near Eindhoven Faced with the loss of the bridge at Son, the 101st unsuccessfully attempted to capture a similar bridge a few kilometres away at Best but found the approach blocked. Source: Internet