Synonyms of peripheral

peripheral

adjective

pə-ˈri-f(ə-)rəl 

as in auxiliary

available to supply something extra when needed

the IT consultant suggested that we update the drivers for all of the computer's peripheral devices

Synonyms & Similar Words

• auxiliary
• additional
• accessory
• supplementary
• makeshift
• supplemental
• appurtenant
• accessorial
• complementary
• further
• added
• contributory
• backup
• supportive
• subordinate
• secondary
• assisting
• assistant
• another
• tributary
• excess
• superfluous
• subsidiary
• surplus
• substitute
• nonessential
• dispensable
• helping
• unessential
• adjuvant
• subservient

Antonyms & Near Antonyms

• main
• principal
• chief
• basic
• primary
• fundamental
• prime
• necessary
• essential
• integral
• vital
• imperative
• required
• requisite
• all-important
• indispensable
• needed
• needful

Example Sentences

Recent Examples of peripheral

The work will address communications systems and AI inference at network edges—meaning in peripheral devices far from central servers. — Lucas Laursen, IEEE Spectrum, 2 July 2026

The National Marrow Donor Program had matched him with a woman battling a rare blood disease, calling on him to donate peripheral blood stem cells through a long blood draw. — Rylan Digiacomo-Rapp, The Orlando Sentinel, 27 June 2026

Ciba treats them not as sweet peripheral matter, but as records of reading under pressure. — Literary Hub, 26 June 2026

During an April 2024 interview with The Sun, John revealed that he was diagnosed with toxic peripheral polyneuropathy, a condition linked to his time at Camp Lejeune, a notorious military base in North Carolina, where the water was severely contaminated in the 1980s. — Kelsey Lentz, PEOPLE, 23 June 2026