Concept: redundancy
Label (en): excess
Description (en): something that is not required, or more than what is sufficient or desirable
Also known as (en): unnecessary, excessive, redundant, redundancy, superfluous, superfluousness
Label (es): superfluo
Description (es): algo que es innecesario
Also known as (es): redundancia
Label (ca): superflu
Label (it): superfluo
Subclass of: quantity, flaw