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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.

That version, previously shown as a prototype last year, has now advanced further in developer testing, Google announced, without providing additional details.

From Barron's • May 19, 2026

Shake Shack, meanwhile, swung to a first-quarter loss, dragged down by additional investments intended to drive traffic while consumers spend frugally at restaurants.

From The Wall Street Journal • May 19, 2026

But he raised a number of concerns, including additional redaction grounds and some documents being withheld.

From BBC • May 19, 2026

On Tuesday, he said he plans to resume his work on education “in time,” without providing additional details.

From MarketWatch • May 19, 2026

“See that they set an additional place for dinner,” Chandresh says to Marco, before taking her on a cursory spin around the room to make sure she has met everyone.

From "The Night Circus" by Erin Morgenstern

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