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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.

An additional 113 climbers also summited via the northern route in Tibet on 22 May 2019, but China has closed this route to foreign climbers this season.

From BBC • May 22, 2026

Now that scientists better understand how to modify these materials, researchers say additional work is needed to improve their stability, predict their behavior more accurately, and evaluate their performance in real-world technologies.

From Science Daily • May 22, 2026

He has said he wants to initiate expansion of two additional teams before his retirement in 2029.

From The Wall Street Journal • May 22, 2026

The former reality TV star’s campaign made 10 separate payments to the L.A. hotel over the period, including nearly $14,900 earmarked for “Candidate Travel, Lodging and Meals” and an additional approximately $600 for “Fundraising Events.”

From Los Angeles Times • May 22, 2026

After his study was done, Farmer returned to the States and did additional research.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

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