additional

adjective

ad·​di·​tion·​al ə-ˈdi-sh(ə-)nəl 

a-

: more than is usual or expected : added

additional information

Synonyms

• more
• further
• farther
• another
• else

Examples of additional in a Sentence

Larger windows will require additional work, but the additional light they will provide may be worth the extra trouble.

there turned out to be additional reasons for her unauthorized absence

Recent Examples on the Web

Secretary Kristi Noem said this past Saturday that additional special operations personnel would be deployed to Illinois after federal agents were rammed and boxed in by 10 cars. —Scott Thompson, FOXNews.com, 9 Oct. 2025

The Watch 3 also comes in silver, black, or gold with an additional hazel option. —PC Magazine, 9 Oct. 2025

There is a bonus pool for the top performers at those events, as well as the general increases in prize money that constitute the payoff for the additional 15-plus days required to go deep at seven events that are nearly two weeks instead of one. —Matthew Futterman, New York Times, 9 Oct. 2025

Players can also add the Double Play for an additional $1 to have a second chance at winning $10 million. —Chris Sims, IndyStar, 9 Oct. 2025

Word History

Etymology

addition + -al entry 1

First Known Use

1563, in the meaning defined above

Rhymes for additional

• conditional
• nutritional
• positional
• traditional
• transitional
• volitional
• compositional
• definitional
• depositional
• dispositional
• intuitional
• nontraditional

Kids Definition

additional

adjective

ad·​di·​tion·​al ə-ˈdish-nəl 

-ən-ᵊl

: being an addition : extra

additionally

-ē

adverb