unsuccessfully (Meaning)

Wordnet

unsuccessfully (r)

without success

The students unsuccessfully attempted to complete the complex math equation.
Despite their best efforts, the team unsuccessfully defended their championship title.
He unsuccessfully searched for his lost wallet in every nook and cranny of the house.
The company unsuccessfully launched its new product due to poor market research.
The politician unsuccessfully campaigned for reelection due to a series of scandals.
The researchers unsuccessfully hypothesized that the new drug would have significant benefits.
The entrepreneur unsuccessfully pitched his business idea to potential investors.
The athlete unsuccessfully broke the world record despite months of intense training.
The scientist unsuccessfully replicated the experiment that led to the groundbreaking discovery.
The musician unsuccessfully performed the challenging piece on stage, causing the audience to boo.

without success

useless, abortive,futile, ineffective, inadequate, bootless, vain, unprofitable, lost, of no avail

efficient,successful, profitable, efficient, profitable, effective, effective, successful, efficacious, virtuous

The students unsuccessfully attempted to complete the complex math equation.

Despite their best efforts, the team unsuccessfully defended their championship title.

He unsuccessfully searched for his lost wallet in every nook and cranny of the house.

The company unsuccessfully launched its new product due to poor market research.