# countless

/ˈkaʊntɫəs/ (US) · /kˈaʊntləs/ (UK)

Source: https://englishreference.com/word/countless
Updated: 2026-06-20

## Senses

### 1. too many to count

adjective · CEFR B2

describing a very large number of things, people, or times.

For teachers: innumerable or too many to be counted; often used for emphasis to describe a vast quantity.

- I have told him countless times to lock the door when he leaves.
- The scientist spent countless hours in the laboratory, meticulously documenting every minor variation in the chemical reaction over several months.

## Examples

- I have told him the same thing countless times.
- The museum houses countless artifacts from the ancient world that have never been displayed to the public.
- Despite countless warnings from environmental scientists regarding the fragility of the ecosystem, industrial expansion continued unabated for several decades.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.