Indicates something is fast in terms of time or speed.
When to use
physical speed, time efficiency, quick response
The nuance
Use 빠르다 when an action or state occurs in less time than a standard or has a higher speed.
빠르다 (ppa-reu-da, ppareuda) · 느리다 (neu-ri-da, neurida)
빠르다 and 느리다 are antonyms that express speed; 빠르다 means fast speed, 느리다 means slow speed.

One lane per word — no nested boxes, just the gist.
Indicates something is fast in terms of time or speed.
When to use
physical speed, time efficiency, quick response
The nuance
Use 빠르다 when an action or state occurs in less time than a standard or has a higher speed.
Indicates something is slow in terms of time or speed.
When to use
physical speed, time delay, slow response
The nuance
Use 느리다 when an action or state takes more time than a standard or has a lower speed.
그는 달리기가 빠르다.
geu-neun dal-ri-gi-ga ppa-reu-da., geu neun dal ri gi ga ppa reu da.
Saying someone runs fast naturally means they run at a high speed.
그는 달리기가 느리다.
geu-neun dal-ri-gi-ga neu-ri-da., geu neun dal ri gi ga neu ri da.
Saying someone runs slow naturally means they run at a low speed.
이 컴퓨터는 작동이 빠르다.
i keom-pyu-teo-neun jak-dong-i ppa-reu-da., i keom pyu teo neun jak dong i ppa reu da.
Saying the computer operates fast means it has a high processing speed, which is natural.
이 컴퓨터는 작동이 느리다.
i keom-pyu-teo-neun jak-dong-i neu-ri-da., i keom pyu teo neun jak dong i neu ri da.
Saying the computer operates slowly means it has low processing speed, which is natural.
그는 느리게 달린다.
geu-neun neu-ri-ge dal-rin-da., geu neun neu ri ge dal rin da.
Saying he runs slowly accurately describes running at a low speed.
그는 빠르게 달린다.
geu-neun ppa-reu-ge dal-rin-da., geu neun ppa reu ge dal rin da.
Saying he runs quickly accurately describes running at a high speed.
그는 빠르게 달린다.
geu-neun ppa-reu-ge dal-rin-da., geu neun ppa reu ge dal rin da.
'빠르게' is an incorrect adverb form; the correct form is '빠르게'.
그는 느리게 달린다.
geu-neun neu-ri-ge dal-rin-da., geu neun neu ri ge dal rin da.
'느리게' is the correct adverb form indicating low speed.
Which sentence correctly describes a person running fast?
What is the appropriate expression when a computer has low processing speed?
Choose the correct adverb form between '빠르게' and '느리게'.
What does it mean?