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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!

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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.

See Examples For:

Alongside efforts to restrict access and harmful information, the researchers suggest that emergency services could take additional steps to reduce the consequences of sodium nitrite poisoning.

From Science Daily Aug. 15, 2026

Quiñones’ unit led a separate effort to find additional cases by reviewing whether people who’d recently become citizens had voted before they were naturalized, then lied about it in naturalization interviews.

From Salon Aug. 15, 2026

"I then went around south Wales valleys identifying historically documented sites which needed additional testing," he added.

From BBC Aug. 15, 2026

Homeowners in some parts of California may also owe additional Mello-Roos taxes.

From MarketWatch Aug. 15, 2026

During the ensuing week, additional flights were booked and then canceled by Fischer as headlines began to question whether he’d appear at all.

From "Endgame" by Frank Brady

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