asynchronous

IPA/eɪˈsɪŋkrənəs/
KK[ˈesˈɪŋkrənəs]IPA/eɪˈsɪŋkrənəs/

asynchronous — adjective

  • asynchronouspositive
  • more asynchronouscomparative
  • most asynchronoussuperlative

1. occurring or taking place at a separate time from something else, without requir

1.形容詞B2
釋義

occurring or taking place at a separate time from something else, without requiring both events to share the same moment or follow a matched pace.

例句

The two countries use an asynchronous election schedule so each votes on a different day.

In the asynchronous format, team members posted updates on a shared document rather than joining a call.

asynchronous meeting format — updates shared over time, not all at once

同義詞
  • unsynchronized

    less common; implies two things that could be aligned are no longer matched

  • offset

    describes events deliberately shifted in time rather than occurring independently

反義詞
  • simultaneous

    means exactly at the same moment, whereas asynchronous means deliberately apart

  • synchronous

    implies coordinated or matched timing between events

文法句型

asynchronous + noun

be + asynchronous

2. used to describe an instructional format where learners work through pre-recorde

2.形容詞B2
釋義

used to describe an instructional format where learners work through pre-recorded videos, readings, and tasks at times that suit them, instead of joining a live lesson held at a fixed hour.

例句

The university offers an asynchronous course where students watch recorded lectures and submit homework by Sunday midnight.

Dr. Yamamoto chose asynchronous teaching so that working parents could study after their children went to bed.

asynchronous teaching — flexible timing for learners with other commitments

同義詞
  • self-paced

    emphasises the learner's freedom to control speed, not the absence of a shared schedule

  • on-demand

    focuses on the availability of materials whenever the learner chooses

反義詞
  • synchronous

    describes live, real-time instruction where all participants meet simultaneously

文法句型

asynchronous + course / learning / teaching / class

用法筆記

Commonly paired with nouns such as 'learning', 'course', 'teaching', and 'program'. The opposite format is 'synchronous', where teacher and students meet at a fixed time, often via live video.

常見錯誤

I joined an asynchronous class where we all meet on Zoom at 9 AM.
I joined an asynchronous class where I watch recorded videos at any time of day.
💡A class with a fixed live meeting time is synchronous, not asynchronous.

3. relating to a way of sending digital data in which the sending and receiving dev

3.形容詞C1
釋義

relating to a way of sending digital data in which the sending and receiving devices do not rely on a shared timing signal, and each unit of data marks its own start and end.

例句

A keyboard uses asynchronous communication — each keystroke arrives with start and stop bits, not a shared clock.

asynchronous communication — data framed with start/stop bits, no shared clock

The technician set the modem to asynchronous mode so the devices did not need a shared timing signal.

同義詞
  • start-stop

    a more specific term for the framing method used in asynchronous serial communication

反義詞
  • synchronous

    requires a shared clock signal between sender and receiver to coordinate data transfer

文法句型

asynchronous + communication / transmission / mode / transfer

asynchronous + noun

用法筆記

Technical term in computing and telecommunications. The opposite 'synchronous' transmission requires both devices to follow a shared clock signal. Not used in everyday conversation outside technical contexts.