1. the quality or state of being profitable or producing financial gain

Examples

• The gainfulness of the investment became clear after the first year of strong returns.
• She evaluated the gainfulness of different business ventures before deciding which to pursue.
• The gainfulness of remote work arrangements has made them increasingly popular with employers.
• He questioned the gainfulness of spending so much time on a project with uncertain outcomes.
• The company's focus on gainfulness sometimes came at the expense of employee satisfaction.