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Mess up meaning

Mess up means to do something badly or spoil it by making a mistake. It can also mean to make a place or thing untidy or dirty.

mess something up

mess up · messed · messing

B2Separable+2 more meanings

I messed up the last question on the test.

Mess up meanings and examples

3 meanings, each with its own CEFR level. A level marked ~ is our estimate: Oxford and Cambridge give none for that meaning.

  1. 1do something badly or spoil it by making a mistake
  2. 2make a place or thing untidy or dirty
  3. 3make someone very unhappy or confused for a long time (informal)
  1. 1

    Do something badly or spoil it by making a mistake

    mess something up

    B2Separable

    • I messed up the last question on the test.
    • Sorry, I messed up your order. I’ll fix it.
    • Don’t worry if you mess it up. Just try again.
  2. 2

    Make a place or thing untidy or dirty

    mess something up

    B1Separable

    • The wind messed up my hair.
    • Please don’t mess up the kitchen. I just cleaned it.
    • The kids messed their room up in ten minutes.
  3. 3

    Make someone very unhappy or confused for a long time (informal)

    mess somebody or something up

    C1Separable

    • Losing his job really messed him up.
    • That film messed me up for days.
    • Bad sleep can mess up your mood.
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Is mess up separable?

Mess up is separable: mess up the plan, mess the plan up. With a pronoun, it goes in the middle: I messed it up, not I messed up it. It can also stand alone: I messed up.

The adjective messed up means very wrong or confused (informal): That’s so messed up. The noun is a mess-up (UK) or a mess.

Verb tenses for mess up

PresentI mess up · she messes up
Pastmessed up
Present perfecthave messed up
-ing formmessing up

Common mistakes with mess up

What learners often say, and what to say instead.

  • Wrong: I had one job and I messed up it.

    Right: I had one job and I messed it up.

    A pronoun goes between mess and up.

  • Wrong: Sorry, I made a mess up.

    Right: Sorry, I messed up.

    Use mess up as a verb, or say I made a mess.

  • Wrong: He messed up with the presentation.

    Right: He messed up the presentation.

    No with. The thing you spoil comes straight after mess up.

Synonyms and opposites of mess up

Words close to it, and words that mean the opposite.

Similar

Opposite

Mess up quiz

Three quick questions. Pick an answer to see if it is right and why.

  1. 1I was so nervous that I ___ my speech.

  2. 2Choose the right sentence.

  3. 3“Don’t mess up the sofa. I just cleaned it.” What is the speaker worried about?

Mess up FAQ

Questions people ask about mess up.

What does I messed up mean?

It means I made a mistake. People say it to admit a mistake honestly: I messed up. I’m sorry.

Is mess up rude?

No. It is informal but polite, fine with friends and at work. Screw up means the same but is ruder.

What does messed up mean?

As an informal adjective, messed up means very wrong, unfair or confused: The way they treated her was messed up.

Use mess up in real conversations

In Slova you learn new words with picture cards, then use them when you talk about the things you love. A few minutes a day, at your level.