Her attempt to secure funding was unsuccessful, but she learned valuable lessons.

Despite months of experimentation, the project's repeated failures only highlighted its inherent unsuccessiveness.

The historian pointed out that the events were unsuccessive, occurring sporadically over decades rather than in a continuous sequence.

Despite months of preparation, the team's unsuccessfulness on the project led to widespread disappointment.

He reflected on his past unsuccesses and used them to grow.

Her repeated attempts ended in discouraging unsuccess, but she learned valuable lessons.

He tried to fix the printer unsuccessfully, so he finally called IT support.