Delayed vs I’m running late. vs Late

When to use each in English, with meaning, register, and examples.

Delayed

Top 2,000 (common)

I’m running late.

Top 2,000 (common)

Late

Top 1,000 (very common)A1adjective
Most common: Late
 DelayedI’m running late.Late
Pronunciation🇬🇧 //dɪˈleɪdɪd//🇺🇸 //dɪˈleɪdɪd//🇬🇧 //aɪm ˈrʌnɪŋ leɪt//🇺🇸 //aɪm ˈrʌnɪŋ leɪt//🇬🇧 /["/leɪt/"]/🇺🇸 /["/leɪt/"]/
MeaningHappening later than plannedI am not on time.After the expected time
ExampleThe meeting was delayed due to unforeseen circumstances.I'm running late for the meeting, please start without me.I am late for my appointment today.
RegisterNeutralNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)Top 1,000 (very common)
CEFR level--A1
Part of speechadjective
Collocationsdelayed flight, delayed response, delayed payment, delayed gratificationrunning late to work, running late for an appointment, running late on a deadlinebe, feel, seem, extremely, fairly, very, for, in, into, an hour, ten minutes, etc. late, leave it rather, very, etc. late
Antonymspunctual, timely, on time-early, on time
Common mistakesConfusing 'delayed' with 'cancelled', Using 'delayed' with the wrong subject, e.g., 'the flight delayed' instead of 'the flight is delayed', Overusing 'delayed' instead of synonyms like 'postponed'Confusing with 'running' as in exercising., Using 'run' instead of 'running' in this context., Not using the phrase when it's actually appropriate.Confusing 'late' with 'lately', which means recently., Using 'late' with the wrong tense, for example, saying 'I will be late yesterday.', Confusing 'late' with 'later' when indicating time.
Usage notesUsed in various contexts, from travel to projects. Avoid using in very informal contexts, like casual conversations.Use this phrase to inform someone you will arrive later than planned. It's polite and widely understood.Use 'late' to describe someone who is not on time for an event or task. Avoid using it in very formal contexts, where 'tardy' might be preferred.

See it in real clips

Delayed
Late

Frequently asked questions: Delayed vs I’m running late. vs Late

What's the difference between Delayed, I’m running late., and Late?

Delayed: Happening later than planned I’m running late.: I am not on time. Late: After the expected time

Which is more common: Delayed, I’m running late., and Late?

Late is the most common in everyday English.

Can you show an example of each?

Delayed: The meeting was delayed due to unforeseen circumstances. I’m running late.: I'm running late for the meeting, please start without me. Late: I am late for my appointment today.

Can I use Delayed, I’m running late., and Late interchangeably?

Not always. Delayed, I’m running late., and Late are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.