# buggy

/ˈbəɡi/ (US) · /bˈʌɡi/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/buggy
Updated: 2026-05-29

## Definition

having many small faults or errors that need fixing. You use it to describe software, websites, or machines that do not work smoothly.

For teachers: characterized by numerous minor defects, errors, or irregularities in function. Commonly applied to software, hardware, or mechanical systems; informal in register.

## Examples

- The new app is still very buggy.
- We delayed the launch because the website was too buggy for customers to use.
- Early versions of the operating system were notoriously buggy, requiring frequent patches to resolve crashes and display errors that frustrated power users.

## Pitfalls

- Not "the program is buggy" but "the program has bugs" — While 'buggy' is correct, learners sometimes confuse the adjective with the noun 'bug' or use 'buggy' when they mean 'broken' (non-functional). 'Buggy' means it works but has errors.

## Usage notes

- Often modified by degree adverbs like 'very' or 'extremely'.

---

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.