1. The plural of effortfulness; instances or qualities of requiring or involving considerable physical or mental exertion.
Usage: Plural form of the abstract noun effortfulness.; Rarely used in everyday speech; more common in academic or formal writing.

Examples

• The effortfulnesses of different athletic pursuits vary greatly.
• She appreciated the effortfulnesses required to master the piano.
• The project's multiple effortfulnesses made it challenging to complete on time.
• Despite the effortfulnesses involved, he remained committed to his goal.