* నిరుపయోగమైన (nirupayogina): This is the most common and direct translation, meaning "useless" or "unusable."
* పాత (paata): This means "old" or "outdated." It can be used in some contexts to imply obsolescence.
* పనిచేయని (panicheyani): This means "not working" or "non-functional," and can be used in some contexts to imply obsolescence.
* జరిగిపోయిన (jarigipóyina): This means "passed away" or "gone," and can be used in some contexts to imply obsolescence of a concept or technology.
The best translation will depend on the specific context in which you are using the word "obsolete."