Word.ws English Dictionary

pseudosibling

pseudosibling noun: one who is not a sibling but has a relationship of that kind.

Noun

pseudosibling (plural pseudosiblings)

  1. One who is not a sibling but has a relationship of that kind.
    • […] the girls were older than average when they entered the family and thus did not develop the usual pseudosibling relationship […]1982, David P. Barash, Sociobiology and behavior
    • With multiple stepparents, stepsiblings, half siblings and pseudosiblings, it’s a whole new type of family, and with it comes the challenge to design a home where everyone feels welcome.2007 April 19, Kate Murphy, “Stepfamilies Try to Stretch Their Space”, in New York Times

Forms of pseudosibling

pluralpseudosiblings

Origin of pseudosibling

From pseudo- + sibling.

Questions about pseudosibling

What does pseudosibling mean?
Pseudosibling means one who is not a sibling but has a relationship of that kind.
What part of speech is pseudosibling?
Pseudosibling is a noun.
What is the plural of pseudosibling?
The plural of pseudosibling is pseudosiblings.

Words near pseudosibling in the dictionary

  1. pseudoservice
  2. pseudoservices
  3. pseudosexual
  4. pseudosexuality
  5. pseudosheath
  6. pseudosibling
  7. pseudosiblings
  8. pseudosilent
  9. pseudosingularities
  10. pseudosinhalite
  11. pseudosink

Source and license

Adapted from Wiktionary: pseudosibling (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-pseudosibling.wav.

Cite this entry: “pseudosibling.” Word.ws, https://word.ws/pseudosibling. Based on Wiktionary, CC BY-SA 4.0.