The following is a list of terms used in relation to age with negative connotations.
Many age-negative terms intersect with ableism, or are derogatory toward people with neurodegenerative diseases such as Alzheimer's disease and dementia.
A large number of these terms are United States slang.
Style guides such as the "Age Writing Guide" by the University of Bristol have been implemented in some institutions to attempt to eliminate the use of ageist terms in academic writing.
[1] Some of these terms may not be pejorative depending on context.