unüblichen
Unüblich is a German adjective meaning not typical or not customary. It is used to describe actions, objects, or situations that deviate from what is normally expected or standard.
The form unüblich declines like other adjectives in German and its endings depend on case, gender, number,
Etymology-wise, unüblich is formed from the prefix un- plus üblich, the latter meaning typical or customary.
In usage, unüblich is appropriate in formal and semi-formal discourse when describing deviations from standard procedures,
See also: üblic h, unüblich vs ungewöhnlich, außerordentlich.
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