adjective no longer in use or no longer useful; outdated or outmoded
Obsolete medical treatments or procedures are no longer used due to newer, more effective methods.
In the field of technology, a product or software is considered obsolete when it is no longer supported or updated by the manufacturer.
Obsolete teaching methods or curriculum are no longer relevant or effective in modern classrooms.
Obsolete engineering designs or materials are no longer in use due to advancements in technology or safety regulations.
Obsolete currencies or economic theories are no longer used or considered valid in the current financial system.
In the field of literature, certain writing styles or techniques may become obsolete as new trends emerge.
In psychology, certain theories or therapeutic approaches may be considered obsolete due to advancements in the field.
In software development, certain programming languages or technologies may become obsolete as newer, more efficient ones are introduced.
In historical research, certain sources or methodologies may be deemed obsolete as new evidence or research methods are discovered.
In architecture, certain design styles or building materials may become obsolete as new technologies and sustainability practices are adopted.