ultra-fast

ultra-fast — adjective

1. happening or operating at a speed that is much greater than what most people wou

1.形容詞B1
釋義

happening or operating at a speed that is much greater than what most people would consider normal or usual for that situation

例句

Hoa's new laptop had an ultra-fast processor that could run three design programs at once.

collocation: ultra-fast processor

The bullet train offers ultra-fast travel between Taipei and Kaohsiung in under ninety minutes.

collocation: ultra-fast travel

同義詞
  • lightning-fast

    more figurative and dramatic; suggests surprising or sudden speed, common in journalism and advertising

  • blindingly fast

    even more intense; implies speed that is hard to perceive or follow

  • super-fast

    more informal and general; common in casual conversation and product descriptions

反義詞
  • slow

    the direct opposite in terms of speed

  • sluggish

    more idiomatic; suggests a pace that feels frustratingly slow

文法句型

ultra-fast + noun (attributive)

be + ultra-fast (predicative)

用法筆記

The ultra- prefix can attach to many adjectives in English (ultra-light, ultra-thin, ultra-modern, ultra-smooth). It is most productive in technology, marketing, and informal settings. In formal academic or professional writing, alternatives such as 'extremely fast' or 'remarkably fast' are often preferred.

常見錯誤

❌This network is ultra.
✅This network is ultra-fast.
💡'ultra-' is a prefix and must attach to a base adjective; it is not a standalone word in standard English.
❌The ultra-fast food was cold by the time we got home.
✅The fast food was cold by the time we got home.
💡'ultra-fast' means extremely quick, which is unrelated to 'fast food' (convenience food). The two phrases are easily confused.