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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.

To avoid any additional pain, she sought out a clinic that offered paracervical blocks—a process she found to be surprisingly difficult.

From Slate • Jun. 7, 2026

If the strait stays closed, however, each additional month would add roughly $5 a barrel to the bank’s third-quarter forecast for oil prices and $15 to its fourth-quarter estimate as inventories decline.

From Barron's • Jun. 7, 2026

Its roots are in imagination, which means there are plenty of additional narratives to conceptualize.

From Salon • Jun. 6, 2026

As of Friday morning, there have been no additional cases of infected animals reported.

From Los Angeles Times • Jun. 6, 2026

She hired a maid, then a cook and additional staff.

From "American Spirits" by Barb Rosenstock

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