The term "inattentional" refers to a lack of attention or being inattentive. It describes an individual's tendency to overlook, miss, or ignore certain stimuli while focusing on others. This can be due to various factors such as distraction, fatigue, stress, or even cognitive limitations that affect one's ability to process and attend to information effectively. Inattentional blindness is a specific form of inattention where an individual fails to notice obvious stimuli, despite having the capacity to see them. This phenomenon has been demonstrated through various experiments, such as asking participants to count objects while simultaneously performing another task, resulting in their failure to notice unexpected or salient events occurring within their field of vision.