on-demand

on-demand — adjective

1. ready to be supplied the moment a person asks for it, rather than only at fixed

1.形容詞B2
釋義

ready to be supplied the moment a person asks for it, rather than only at fixed times or in advance.

例句

The new printer offers on-demand colour copies for anyone who walks into the library.

on-demand + noun (attributive use)

Élise runs an on-demand cake shop where customers choose the size and flavour by phone.

on-demand + business noun

同義詞
  • as-needed

    more informal; common in workplace English

  • instant

    stresses speed rather than the act of requesting

反義詞
  • scheduled

    fixed in advance, not triggered by a request

文法句型

on-demand + noun

用法筆記

Only used before a noun (attributive); you cannot say 'the service is on-demand'. Distinguish from sense 3, which is restricted to films and TV.

常見錯誤

The taxi service is on-demand.
It is an on-demand taxi service.
💡on-demand sits before a noun, not after 'be'.

2. describing companies, apps, or whole industries built around supplying things or

2.形容詞C1
釋義

describing companies, apps, or whole industries built around supplying things or work the moment a customer asks, often through a phone app.

例句

Liam works in the on-demand economy, driving for two ride-share apps every weekend.

on-demand + economy/sector noun

Several on-demand startups now connect local plumbers with families needing urgent repairs.

on-demand + company noun

同義詞
反義詞

文法句型

on-demand + industry/economy noun

用法筆記

Subject is usually a business, sector, platform, or workforce — not a single product. Distinguish from sense 1, where on-demand modifies the product or service itself.

3. describing films, shows, or video that a viewer can start at any moment, instead

3.形容詞B1
釋義

describing films, shows, or video that a viewer can start at any moment, instead of waiting for a scheduled broadcast time.

例句

Mauricio caught up on the football match through the channel's on-demand replay later that night.

on-demand + replay/playback noun

The streaming app offers thousands of on-demand films, including many classic Korean dramas.

on-demand + films/shows (typical pattern)

同義詞
  • streaming

    broader; covers both live and recorded online video

  • catch-up

    British English; specifically programmes you missed live

反義詞
  • live

    broadcast at a fixed time as it happens

  • scheduled

    shown only at set times in a programme guide

文法句型

on-demand + film/TV/video noun

用法筆記

Object is almost always a video, film, show, channel, or recording. Distinguish from sense 1: 'on-demand printing' is sense 1; 'on-demand films' is sense 3.

on-demand — noun

on-demand — idiom