To no longer be up to date, modern, or commonly used. This can refer to technology, knowledge, words, or methods.
example
Die Software auf diesem Computer ist komplett veraltet und sollte dringend aktualisiert werden.
The software on this computer is completely outdated and urgently needs to be updated.
Usage tips
Word structure
The verb is made up of the prefix 'ver-' and the word 'alt' (old). The prefix 'ver-' describes a process or change here. 'Veralten' (to become outdated) therefore means that something becomes old and unusable over time.
EXAMPLE
Ohne regelmäßige Fortbildungen veraltet Fachwissen sehr schnell.
Without regular professional training, specialist knowledge becomes outdated very quickly.
Perfect with 'sein'
Since 'veralten' (to become outdated) describes a change of state, the perfect tense is formed with the auxiliary verb 'sein' (to be), not with 'haben' (to have).
EXAMPLE
Meine Kenntnisse in diesem Bereich sind leider schon etwas veraltet.
Unfortunately, my knowledge in this area is already somewhat outdated.
Participle as adjective
The past participle 'veraltet' (outdated) is very often used as an adjective to describe the state of something that is no longer modern or current.
EXAMPLE
Er benutzt immer noch ein völlig veraltetes Handy ohne Internetzugang.
He still uses a completely outdated cell phone without internet access.
Typical subjects
Typically, it is abstract things or technologies that become outdated. These include, for example: technology, knowledge, methods, laws, or information.
EXAMPLE
Die alten Sicherheitsstandards sind inzwischen veraltet.
The old safety standards are now outdated.
Compare with
antonym
veralten vs aktualisieren
to update / refresh
'aktualisieren' and 'veralten' are clear opposites. When you aktualisieren something, you bring it up to date, for example data, a program, or a website. When something veraltet, it is no longer current, modern, or suitable. So 'aktualisieren' describes an active action. 'veralten' describes more of a state or a development over time. In short: by updating something, you often prevent it from becoming outdated.
veralten
Ohne neue Informationen veraltet die Liste in wenigen Wochen.
Without new information, the list becomes outdated within a few weeks.
aktualisieren
Vor dem Termin aktualisiert meine Mutter die App auf ihrem Handy.
Before the appointment, my mother updates the app on her phone.