The term "atypical" refers to something that deviates from the norm or standard. It describes characteristics, behaviors, or occurrences that are not commonly observed. For example, an atypical reaction to a medication may indicate that a patient experiences side effects that are rare compared to the general population. In various fields, such as psychology or biology, identifying atypical patterns can provide valuable insights. For instance, an atypical development in a child's behavior might prompt further investigation into potential underlying issues. Recognizing these unusual traits helps professionals tailor their approaches to better meet individual needs.