Word.ws English Dictionary

monster-in-law

monster-in-law noun: a very unpleasant mother-in-law (spouse's mother).

Noun

monster-in-law (plural monsters-in-law)

  1. (colloquial, humorous) A very unpleasant mother-in-law (spouse's mother).
    • So when we belatedly celebrated Caspar's third anniversary the following weekend, I was notably frosty towards her. But this is not a typical tale of monster-in-law woes.2011 April 22, Anna Maxted, “Why I love my mother-in-law”, in The Guardian, →ISSN

Forms of monster-in-law

pluralmonsters-in-law

Origin of monster-in-law

Blend of monster + mother-in-law.

Questions about monster-in-law

What does monster-in-law mean?
Monster-in-law means a very unpleasant mother-in-law (spouse's mother).
What part of speech is monster-in-law?
Monster-in-law is a noun.
What is the plural of monster-in-law?
The plural of monster-in-law is monsters-in-law.

Words near monster-in-law in the dictionary

  1. monster tumbleweed
  2. monster under the bed
  3. monster-boar
  4. monster-cock
  5. monster-cocks
  6. monster-in-law
  7. monstera
  8. monsteras
  9. monstercock
  10. monstercocks
  11. monsterdick

Source and license

Adapted from Wiktionary: monster-in-law (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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Cite this entry: “monster-in-law.” Word.ws, https://word.ws/monster-in-law. Based on Wiktionary, CC BY-SA 4.0.