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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

Derived 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!

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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.

"Additional trained resource remains in place, and our focus is on ensuring members of the Civil Service Pension Scheme receive the service they expect and deserve," said a spokesperson.

From BBC • Jun. 8, 2026

Additional conditions allow for shares to keep trickling out into the market ahead of the six-month expiration date.

From MarketWatch • Jun. 3, 2026

Additional detail from the echocardiogram, such as the ejection fraction—the percentage of blood pumped with each heart contraction—would also provide a fuller picture of the president’s health.

From The Wall Street Journal • May 31, 2026

Additional information about their conditions was not immediately available on Wednesday.

From Los Angeles Times • May 27, 2026

Additional fact: if you relax, your body’s buoyancy will cause you to float.

From "All The Bright Places" by Jennifer Niven

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