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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

  • additionally adverb
  • preadditional adjective

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!

Keep Reading on Vocabulary.com

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.

But even after it raises that amount, Oracle still has additional cash funding needs of $100 billion or more for 2027 and the first half of 2028, according to Morgan Stanley credit analysts.

From The Wall Street Journal • Apr. 24, 2026

U.S. employees will receive severance of 16 weeks of base pay, plus two additional weeks for every year they have been with the company, Gale added.

From Barron's • Apr. 23, 2026

Duffy's Circus added that it was committed to making any reasonable adjustments for audience members and circus goers should flag any additional requirements in advance.

From BBC • Apr. 23, 2026

Drop 2, which will begin in August, will have additional tickets across all Olympic sports, including those that may have sold out during the first purchasing windows.

From Los Angeles Times • Apr. 23, 2026

Messrs. Pinkerton & Co. deserve great credit...and have won additional laurels by the success which has crowned their efforts.

From "The Detective's Assistant" by Kate Hannigan