1. in a way that produces no useful result or success; without achieving the desired outcome

Examples

• She searched fruitlessly through the old files for the missing document.
• The team tried fruitlessly to score a goal in the final minutes of the game.
• He spent hours fruitlessly attempting to fix the broken computer.
• The rescue workers searched fruitlessly for survivors in the rubble.
• They debated fruitlessly about the best solution to the problem.
• The company invested millions fruitlessly in the failed project.