1.
redundant; verbose; long-winded; tediously lengthy
Containing unnecessary repetition or excess; using more words or elements than needed.
冗長 describes something that is unnecessarily long or repetitive. As a na-adjective, it has a generally negative nuance in everyday use.
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Technical use
In computing, 冗長性 (redundancy) has a positive meaning — backup systems that prevent data loss. 冗長構成 means 'redundant configuration' for fault tolerance.