Not necessary or something one can do without. Something is dispensable when one can manage perfectly well without it.
example
Angesichts der knappen Zeit sind lange Diskussionen über Nebensächlichkeiten entbehrlich.
Given the limited time, long discussions about minor details are dispensable.
Usage tips
Word family
The adjective 'entbehrlich' (dispensable) is derived from the verb 'entbehren' (to do without something or to lack something). The prefix 'ent-' often expresses removal. Something 'Entbehrliches' (dispensable) can therefore be 'removed' without being missed.
EXAMPLE
In der Notlage mussten sie auf alles entbehrliche Gepäck verzichten.
In the emergency situation, they had to do without all dispensable luggage.
Register and style
'Entbehrlich' (dispensable) is a word used in more formal language and often appears in written texts, reports, or evaluations. It sounds more objective and detached.
EXAMPLE
Die Studie kam zu dem Schluss, dass dieser Arbeitsschritt entbehrlich ist.
The study concluded that this work step is dispensable.
Usage pattern
A fixed expression is 'sich entbehrlich machen' (to make oneself dispensable). This means that a person behaves or works in such a way that they are no longer needed and can easily be replaced.
EXAMPLE
Wer sein Wissen nicht teilt, macht sich im Team schnell entbehrlich.
Anyone who does not share their knowledge quickly makes themselves dispensable in a team.
Compare with
antonym
entbehrlich vs nötig
necessary
'nötig' and 'entbehrlich' are clear opposites. 'nötig' says that you need something or that something is required. 'entbehrlich' says that you can do without something because it is not really needed. If something is important for a goal, it is 'nötig'. If it can be left out without a problem, it is 'entbehrlich'.
entbehrlich
Für die kurze Besprechung ist ein langer Bericht entbehrlich.
For the short meeting, a long report is dispensable.