The term "mental deficiency" is an outdated and derogatory term used to describe individuals who have intellectual disabilities or developmental disorders. Instead, there are several alternative terms that are preferable and more respectful to use. These include "neurodivergent," "cognitive impairment," "developmental disability," "intellectual disability," and "learning disability." All of these terms recognize that individuals who have these conditions have strengths and abilities that should be celebrated, rather than diminished by negative language. As society becomes more aware of the need for inclusivity and respect for all individuals, it is crucial that we use language that upholds these values.