Dictionary.com
Thesaurus.com
Synonyms

altogether

American  
[awl-tuh-geth-er, awl-tuh-geth-er] / ˌɔl təˈgɛð ər, ˈɔl təˌgɛð ər /

adverb

  1. wholly; entirely; completely; quite.

    altogether fitting.

    Synonyms:
    absolutely, totally, utterly
  2. with all or everything included.

    The debt amounted altogether to twenty dollars.

  3. with everything considered; on the whole.

    Altogether, I'm glad it's over.


idioms

  1. in the altogether, nude.

    When the phone rang she had just stepped out of the bathtub and was in the altogether.

altogether British  
/ ˌɔːltəˈɡɛðə, ˈɔːltəˌɡɛðə /

adverb

  1. with everything included

    altogether he owed me sixty pounds

  2. completely; utterly; totally

    he was altogether mad

  3. on the whole

    altogether it was a very good party

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. informal naked

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Commonly Confused

The forms altogether and all together, though often indistinguishable in speech, are distinct in meaning. The adverb altogether means “wholly, entirely, completely”: an altogether confused scene. The phrase all together means “in a group”: The children were all together in the kitchen. The word all can be omitted without seriously affecting the meaning: The children were together in the kitchen.

Etymology

Origin of altogether

First recorded in 1125–75; variant of Middle English altogeder; see all, together

Explanation

If you're altogether certain, you know it for a fact. Since you're altogether sure that your calculations are correct, go ahead with the experiment. Please wear your goggles just in case. Never use “all together” (meaning “all in one place”) when you mean altogether (which can also mean "all things considered"). It was risky to bring us all together again after so many years, but you have to admit that altogether we had a good time. Altogether, it could have been worse. It wasn't altogether bad. I suppose we won't do it again next year.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Altogether, the treatments cost more than a month’s worth of rent, even with insurance applied when possible.

From Slate • May 23, 2026

Altogether, the analysis included 370 people with anxiety disorders and 342 people without anxiety.

From Science Daily • May 16, 2026

Altogether, Curtis said the three deals from the March quarter “represent a minimum value” of $42 billion.

From MarketWatch • May 1, 2026

Altogether, the company’s capex will add up to about $200 billion this year.

From Barron's • May 1, 2026

Altogether, according to John McPhee, these number in the "tens of dozens."

From "A Short History of Nearly Everything" by Bill Bryson

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "altogether" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com