[re.dun.dant] adj [L redundant-, redundans, prp. of redundare to overflow--more at redound] (1594) 1 a: exceeding what is necessary or normal: superfluous b: characterized by or containing an excess; specif: using more words than necessary c: characterized by similarity or repetition "a group of particularly ~ brick buildings" d chiefly Brit: no longer needed for a job and hence laid off
2: profuse, lavish
3: serving as a duplicate for preventing failure of an entire system (as a spacecraft) upon failure of a single component -- re.dun.dant.ly adv