intermediary

1 of 2

noun

in·​ter·​me·​di·​ary ˌin-tər-ˈmē-dē-ˌer-ē 

plural intermediaries

1

a

: mediator, go-between

b

: medium, means

2

: an intermediate form, product, or stage

intermediary

2 of 2

adjective

1

: intermediate

2

: acting as a mediator

an intermediary agent

an intermediary particle

Did you know?

Since inter- means "between, among", an intermediary is someone who moves back and forth in the middle area between two sides—a "go-between". Mediator (which shares the medi- root) is often a synonym, and so is facilitator; broker and agent are often others. Thus, a real-estate broker or agent shuttles between a house's buyer and seller, who may never even meet each other. Financial intermediation is what happens when you put money in a bank or investment firm, which then invests it in various companies; if you want, you can instead cut out the intermediary and invest the money directly in companies of your own choosing.

Synonyms

Noun

• broker
• buffer
• conciliator
• go-between
• honest broker
• interceder
• intercessor
• intermediate
• interposer
• mediator
• middleman
• peacemaker

Adjective

• central
• halfway
• intermediate
• medial
• median
• mediate
• medium
• mid
• middle
• midmost

Examples of intermediary in a Sentence

Noun

He served as an intermediary between the workers and the executives.

in the past he's served as an intermediary in several hostage situations

Adjective

the bridal couple were regally ensconced in intermediary seats at the head table

Recent Examples on the Web

Noun

But a senior Iranian official said any negotiations would be indirect, with Oman acting as intermediary. —Alexis Simendinger, The Hill, 8 Apr. 2025

Apprenticeship intermediaries can be public, non-profit, or for-profit organizations and can work locally, regionally, statewide, or nationally. —Bruno V. Manno, Forbes.com, 2 Apr. 2025

Adjective

Flaws Of Traditional Financial Systems Traditional payment systems are expensive due to intermediary banks as well as credit card networks. —Raymond Qu, Forbes.com, 28 Mar. 2025

The current process often involves sending funds through intermediary countries like the UK or US. —Boaz Sobrado, Forbes, 21 Mar. 2025

Word History

First Known Use

Noun

1791, in the meaning defined at sense 1a

Adjective

1777, in the meaning defined at sense 1

Kids Definition

intermediary

adjective

in·​ter·​me·​di·​ary

ˌint-ər-ˈmēd-ē-ˌer-ē

1

: intermediate

an intermediary stage

2

: acting as a mediator

intermediary agent

intermediary noun

Medical Definition

intermediary

noun

in·​ter·​me·​di·​ary ˌint-ər-ˈmēd-ē-ˌer-ē 

plural intermediaries

1

: mediator

2

: an intermediate form, product, or stage

intermediary adjective

Legal Definition

intermediary

noun

in·​ter·​me·​di·​ary

ˌin-tər-ˈmē-dē-ˌer-ē

plural intermediaries

: one that acts as a means or go-between in a matter involving other parties

a reinsurance intermediary

see also learned intermediary

intermediary adjective