Jump To:

• MIS
  MIS

  abbreviation

  management information system.
• mis-
  mis-

  a prefix applied to various parts of speech, meaning “ill,” “mistaken,” “wrong,” “wrongly,” “incorrectly,” or simply negating.

MIS

¹ American  

abbreviation

1. management information system.

2. multisystem inflammatory syndrome.

---

mis- ² American  

1. a prefix applied to various parts of speech, meaning “ill,” “mistaken,” “wrong,” “wrongly,” “incorrectly,” or simply negating.

   mistrial; misprint; mistrust.

---

mis- ³ American  

1. variant of miso- before some vowels.

   misanthrope.

---

mis- ¹ British  

prefix

1. wrong, bad, or erroneous; wrongly, badly, or erroneously

   misunderstanding

   misfortune

   misspelling

   mistreat

   mislead

2. lack of; not

   mistrust

---

mis- ² British  

prefix

1. a variant of miso-

---

Etymology

Origin of mis-

Middle English; Old English mis ( se )-; cognate with German miss-, Gothic missa- ( see miss ¹; ); often replacing Middle English mes- < Old French < West Germanic *mis ( s )-

Example Sentences

"We must fight mis- and disinformation, online harassment, and greenwashing," Guterres said at the World Meteorological Organization in Geneva, insisting: "Scientists and researchers should never fear telling the truth."

From Barron's • Oct. 22, 2025

My concern grows as we know that social media are “used extensively by youth around the world,” exposing them to mis- and disinformation on a daily basis.

From Scientific American • Aug. 16, 2023

He claims to defend the First Amendment right of free speech, yet he is essentially denying the free speech of academics researching the existence and application of mis- and disinformation.

From Seattle Times • Jun. 14, 2023

These same audiences are constantly bombarded with mis- and disinformation, and with fake images, including those generated by AI.

From BBC • May 21, 2023

Sometimes at night when I came back to the barn, I would find a chair where I was sure it had not been, or books mis- shelved.

From "Dragonwings" by Laurence Yep