There may be lack of motivation or the ability to begin an activity; the person tires easily once the activity has begun; and. the person has mental fatigue or difficulty with concentration and memory to start or complete an activity.
plural ID's or IDs : a document (such as a card) bearing identifying information about and often a photograph of the individual whose name appears on it â called also ID card, identification card, identity card
ID is defined as an abbreviation for identification. An example of an ID is a driver's license. I'd is defined as I had or I would. The definition of the id is the unconscious part of the mind that causes primal needs to be met, according to Freudian theory. An example of id is the instinct of fight or flight. id.