Dictionary.com
Thesaurus.com
Showing results for additional. Search instead for simply additional.
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!

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.

See Examples For:

"Those additional steps could have contributed to recovering the children sooner," it found.

From Barron's Sep. 15, 2026

Investors have increasingly priced in a faster pace of rate hikes, with the overnight index swaps market showing a 65% chance of an additional rate increase in December.

From The Wall Street Journal Sep. 15, 2026

Scientists say additional surveys may reveal more reefs elsewhere in the surrounding area.

From Science Daily Sep. 15, 2026

“Holding rates steady would provide additional time to assess whether there are potential cracks in the foundation of the expansion,” Tannenbaum said in an email to clients.

From MarketWatch Sep. 14, 2026

Unbeknownst to the commander, the ship carried an additional newcomer.

From "Shipwreck at the Bottom of the World" by Jennifer Armstrong

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training