B2 verb #6,000 よく出る 3分で読める

buggy

Something is buggy if it has many errors or keeps breaking.

Explanation at your level:

A buggy game does not work well. It has mistakes. You cannot play it easily. It is not good.

If an app is buggy, it has many errors. It might close suddenly. It is frustrating to use when it is buggy.

We use buggy to describe software that is unreliable. If you download a new program and it keeps crashing, you can say, 'This software is quite buggy.'

In a technical context, buggy implies that the developers have not yet patched the code. It is a common way to express dissatisfaction with a product's performance.

The term buggy has transcended its literal software meaning. It is now used metaphorically to describe any system or process that is prone to recurring failures or logical inconsistencies.

Historically rooted in the physical 'debugging' of early hardware, buggy now serves as a ubiquitous descriptor in the digital age. It captures the tension between human design and machine execution, highlighting the inherent fallibility of complex systems.

30秒でわかる単語

  • Buggy means full of errors.
  • Used for software/tech.
  • Not for people.
  • Adjective form.

When you hear the word buggy, think of something that just isn't working the way it should. Most commonly, we use this term in the world of technology. If a website, an app, or a video game is described as buggy, it means it is full of glitches or errors that make it frustrating to use.

Imagine trying to play a game, but your character keeps falling through the floor—that is a classic example of a buggy experience! While the root word 'bug' refers to a small insect, in computing, it refers to a flaw in the code. So, when a system is buggy, it is essentially 'infested' with these tiny technical problems.

The history of buggy is quite fascinating because it bridges the gap between mechanical engineering and computer science. The term 'bug' for a technical error dates back to the 19th century, with Thomas Edison famously using it to describe technical difficulties in his inventions.

However, the term became legendary in 1947 when computer pioneer Grace Hopper found a literal moth stuck in a relay of the Harvard Mark II computer. She famously taped the insect into the logbook, marking it as the first actual case of a computer 'bug' being found. Since then, the adjective buggy has been used to describe any software or system that behaves in an unpredictable or faulty manner.

You will mostly hear buggy in professional tech environments or among gamers. People often say, 'The new update is really buggy,' to warn others that the software might crash or behave strangely. It is a very common informal adjective.

Common collocations include buggy software, buggy code, and buggy interface. While it is acceptable in a professional office setting, you should avoid using it in highly formal documents; instead, use terms like 'unstable' or 'contains numerous defects' to sound more polished.

While 'buggy' itself isn't an idiom, it is part of the 'bug' family. 1. To have a bug in one's ear: To be obsessed with an idea. 2. Bug out: To leave quickly or panic. 3. As snug as a bug in a rug: To be very comfortable. 4. Don't let the bed bugs bite: A cute way to say goodnight. 5. Catch the bug: To become interested in something suddenly.

Buggy is an adjective, so it doesn't have a plural form. In British and American English, it is pronounced /ˈbʌɡi/. The stress is on the first syllable. It rhymes with words like muggy, sluggy, and pluggy.

When using it, you usually place it before a noun (e.g., 'a buggy program') or after a linking verb (e.g., 'The game is buggy'). Remember that it is a descriptive word, so you can intensify it by saying 'very buggy' or 'incredibly buggy'.

Fun Fact

Grace Hopper found a literal moth in a computer in 1947.

Pronunciation Guide

UK /ˈbʌɡi/

Short 'u' sound, stress on first syllable.

US /ˈbʌɡi/

Similar to UK, clear 'g' sound.

Common Errors

  • Pronouncing the 'u' like 'oo'
  • Stressing the second syllable
  • Adding an extra sound at the end

Rhymes With

muggy sluggy pluggy chuggy shruggy

Difficulty Rating

読解 2/5

Easy

Writing 2/5

Easy

Speaking 2/5

Easy

リスニング 2/5

Easy

What to Learn Next

Prerequisites

software error

Learn Next

debug glitch

上級

unstable defective

Grammar to Know

Adjective usage

The car is red.

Examples by Level

1

The game is buggy.

Game = game, buggy = has errors

Adjective after verb 'is'.

2

My phone is buggy.

Phone = telephone, buggy = bad

Simple subject-verb-adjective.

3

This app is buggy.

App = software, buggy = error

Demonstrative pronoun 'this'.

4

Is it buggy?

Question form

Inversion for questions.

5

The code is buggy.

Code = computer instructions

Subject is 'code'.

6

Not a buggy game.

Negative

Adjective phrase.

7

It feels buggy.

Feels = seems

Linking verb 'feels'.

8

Too buggy now.

Too = very

Adverb 'too' modifying adjective.

1

The software is very buggy.

2

I hate using this buggy website.

3

Why is this program so buggy?

4

The update made the system buggy.

5

It was a buggy release.

6

Don't install that buggy app.

7

The game is too buggy to play.

8

Is the new version still buggy?

1

The developers are trying to fix the buggy code.

2

I reported the buggy features to the support team.

3

It is common for early releases to be buggy.

4

The interface is buggy and slow.

5

I prefer waiting for a stable version rather than a buggy one.

6

The app became buggy after the last update.

7

It is a known issue that the app is buggy.

8

Stop using the buggy browser.

1

The company released a notoriously buggy product.

2

Despite the patches, the software remains incredibly buggy.

3

We cannot launch the product while it is still this buggy.

4

The user experience is ruined by the buggy navigation.

5

It is a buggy mess of a program.

6

The team is struggling to manage the buggy codebase.

7

I found a workaround for the buggy login screen.

8

The system is prone to being buggy under heavy load.

1

The inherent complexity of the architecture makes it susceptible to becoming buggy.

2

The developers prioritized speed over stability, resulting in a remarkably buggy deployment.

3

One must exercise caution when integrating such buggy third-party libraries.

4

The documentation fails to address the most buggy aspects of the API.

5

It is an exercise in futility to debug such a fundamentally buggy application.

6

The software's reputation for being buggy has severely impacted its market share.

7

We are conducting a thorough audit to identify the most buggy modules.

8

The legacy system is so buggy that a complete rewrite is necessary.

1

The project was plagued by a buggy foundation that defied all attempts at remediation.

2

Such a buggy implementation is a testament to the lack of rigorous testing protocols.

3

The software’s buggy nature reflects a deeper systemic failure in the development lifecycle.

4

One might argue that the product's buggy state is a direct consequence of technical debt.

5

The codebase is so notoriously buggy that it has become a cautionary tale for engineers.

6

The developers were overwhelmed by the sheer volume of buggy reports from users.

7

Despite the aesthetic appeal, the underlying logic remains fundamentally buggy.

8

The transition was hindered by the buggy performance of the new middleware.

類義語

pester annoy wiretap glitchy faulty erroneous

反対語

soothe stable reliable

よく使う組み合わせ

buggy software
very buggy
buggy code
buggy mess
remains buggy
buggy release
buggy feature
incredibly buggy
buggy interface
buggy app

Idioms & Expressions

"bug out"

to leave in a hurry

We had to bug out when the alarm went off.

casual

"bug someone"

to annoy

Stop bugging me!

casual

"as snug as a bug"

very comfortable

I'm as snug as a bug in this blanket.

casual

"catch the bug"

to get interested in something

He caught the travel bug early.

neutral

"a bug in the system"

a flaw or error

There is a bug in the system.

neutral

Easily Confused

buggy vs buggy (carriage)

Same spelling

One is a vehicle, one is an error

The horse pulled the buggy.

buggy vs bug

Root word

Noun vs Adjective

That is a bug.

Sentence Patterns

A1

Subject + is + buggy

The site is buggy.

A2

This + noun + is + buggy

This app is buggy.

語族

Nouns

bug a glitch or insect

Verbs

debug to remove errors

Adjectives

buggy full of errors

関連

debugging the process of fixing bugs

How to Use It

frequency

7

Formality Scale

neutral casual

よくある間違い

Using 'buggy' to describe a person annoying
Buggy refers to things/systems, not people.
Using 'buggy' as a verb bug
Buggy is an adjective; bug is the verb.
Confusing with 'bugle' buggy
Different meanings entirely.
Saying 'very buggier' very buggy
Do not combine intensifiers with comparatives.
Thinking it means 'insect-like' prone to errors
In tech, it means faulty, not literal bugs.

Tips

💡

Don't say 'a bugginess'

Use 'the bugginess' instead.

💡

The Moth

Remember the moth in the computer!

Memorize It

Mnemonic

B-U-G-G-Y: Broken Under Great Glitchy Yields.

Visual Association

A computer screen with a giant moth sitting on it.

Word Web

Software Glitch Error Code Crash

チャレンジ

Describe a piece of technology you own that has glitches.

語源

English

Original meaning: Derived from 'bug' (insect/ghost)

文化的な背景

None

Widely used in Silicon Valley and gaming culture.

Grace Hopper's moth logbook

Practice in Real Life

Real-World Contexts

Tech Support

  • The software is buggy
  • Report a bug
  • Fix the issue

Gaming

  • The game is buggy
  • Glitchy movement
  • Needs a patch

Conversation Starters

"Have you ever used a buggy app?"

"What is the most buggy game you played?"

Journal Prompts

Write about a time you were frustrated by a buggy program.

よくある質問

8 問

No, it is casual.

No, only things.

Stable.

No, it is an adjective.

Tech history.

Yes.

Both.

To debug.

自分をテスト

fill blank A1

The game is ___.

正解! おしい! 正解: buggy

Buggy describes the game.

multiple choice A2

What does buggy mean?

正解! おしい! 正解: Full of errors

Buggy means having errors.

true false B1

Buggy is a verb.

正解! おしい! 正解: 間違い

Buggy is an adjective.

match pairs B1

Word

意味

All matched!

Matching definition.

sentence order B2

下の単語をタップして文を組み立てよう
正解! おしい! 正解:

Correct structure.

スコア: /5

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