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Synonyms

additional

American  
[uh-dish-uh-nl] / əˈdɪʃ ə nl /

adjective

  1. added; more; supplementary.

    additional information.


additional British  
/ əˈdɪʃənəl /

adjective

  1. added or supplementary

"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

Other Word Forms

Etymology

Origin of additional

First recorded in 1630–40; addition + -al 1

Explanation

If your parents get you a cell phone and add it to their plan as an additional line, they are adding one more line to their bill, so additional means another or one more. Even though they added an additional line to their plan, your parents might ask you to pay for the additional charges. That means they will see how much more your phone usage adds to their plan, and will charge it back to you. If you complain, they might say to avoid additional conflict, you can just get your own plan and pay all of the bills!

Keep Reading on Vocabulary.com

Vocabulary lists containing additional

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.

And that return to growth won’t require additional capital expenditures, he said.

From The Wall Street Journal • May 7, 2026

Passengers were advised to use their tickets at no additional cost on alternative routes.

From BBC • May 7, 2026

A separate vehicle called “THSDFS LLC” contains around 60 additional positions, also withheld.

From MarketWatch • May 7, 2026

The challenge is that many of these additional drugs affect the entire body rather than specific target cells, raising the likelihood of side effects.

From Science Daily • May 7, 2026

The Kane family reluctantly provided Cornelius with additional funds for Maggie’s support.

From "American Spirits" by Barb Rosenstock