adjective re·dun·dant \ ri-ˈdən-dənt \
|Updated on: 9 Aug 2018

Definition of redundant

1 a : exceeding what is necessary or normal : superfluous
b : characterized by or containing an excess; specifically : using more words than necessary
c : characterized by similarity or repetition
  • a group of particularly redundant brick buildings
d chiefly British : no longer needed for a job and hence laid off
3 : serving as a duplicate for preventing failure of an entire system (such as a spacecraft) upon failure of a single component



Examples of redundant in a Sentence

  1. The drone had originally been designed to go places the Blackbird could not, but it had become redundant on discovery of the fact that there was nowhere the SR-71 could not go in safety … —Tom ClancyThe Cardinal of the Kremlin1989
  2. Undoubtedly in ninety-nine cases out of a hundred a witness to an occurrence is someone who has seen it. Therefore, some editors have said, eyewitness is a redundant word and it should be consigned to the dustbin. —Theodore M. BernsteinMrs. Thistlebottom's Hobgoblins1971
  3. There they sat, grounded upon the ground, silent, uncomplaining, with bowed heads, a pathetic sight. And by hideous contrast, a redundant orator was making a speech to another gathering not thirty steps away … —Mark TwainA Connecticut Yankee in King Arthur's Court1889
  4. He edited the paper and removed any redundant information or statements.

  5. Avoid redundant expressions in your writing.

  6. Some people say that since all adages are old, the phrase “old adage” is redundant.

Recent Examples of redundant from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'redundant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of redundant

Latin redundant-, redundans, present participle of redundare to overflow — more at redound

Other Aeronautics/Aerospace Terms

REDUNDANT Defined for English Language Learners


Definition of redundant for English Language Learners

  • : repeating something else and therefore unnecessary

  • —used to describe part of a machine, system, etc., that has the same function as another part and that exists so that the entire machine, system, etc., will not fail if the main part fails

  • : dismissed from a job because you are no longer needed

Medical Dictionary


adjective re·dun·dant \ ri-ˈdən-dənt \

medical Definition of redundant

: characterized by or containing an excess or superfluous amount
  • redundant pharyngeal tissue

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