There are a few synonyms for the term "cognitive deficit," which can be used interchangeably in different contexts. Some alternative phrases include "cognitive impairment," "cognitive dysfunction," or "cognitive decline." These terms are often used to describe individuals who have difficulties with memory, attention, concentration, or other cognitive processes. "Neurocognitive impairment" is another phrase that is often used in research or medical contexts to describe similar conditions, particularly those related to brain injuries or diseases. Other related terms might include "disability," "deficiency," or "impairment" when referring to the impact of cognitive deficits on an individual's abilities or daily functioning.