additional

adjective

ad·​di·​tion·​al ə-ˈdi-sh(ə-)nəl 

a-

: more than is usual or expected : added

additional information

Synonyms of additional

• 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

Furthermore, prosecutors noted that Knox may have had access to additional county money through her service on the volunteer board of the local Crossroads Foundation, which helps women with substance use disorders. —Blake Nelson, San Diego Union-Tribune, 19 Feb. 2026

Moderna said while the FDA had recommended that approach, the agency ultimately agreed to the study's design -- and the company shared additional comparison data from a separate trial that used a high-dose shot for older people. —Arkansas Online, 19 Feb. 2026

An additional 97 schools are currently under investigation for compliance issues. —Josh Funk, Los Angeles Times, 19 Feb. 2026

There is also radiant heating throughout, as well as a subterranean six-car garage with EV charging and additional parking for up to 20 vehicles. —Wendy Bowman, Robb Report, 18 Feb. 2026

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