Unmotivated (adjective)

1. Not having a reason or cause for action.
2. Lacking inspiration or drive.
3. Not having any motivation or incentive.

Origin:

From the latin word 'inmotivatus' which means 'without a reason or cause'.

Examples:

1. The student was unmotivated and did not perform well on the exam.
2. The employee was unmotivated and did not complete the task as efficiently as usual.
3. The athlete was unmotivated and did not perform at their best during the competition.
4. The artist was unmotivated and did not create any new work for several months.
5. The team was unmotivated and did not put in a strong effort during the game.