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False cognate · False friend

fastidious

Does NOT mean fastidioso

It means meticulous / very particular about details

Written by Bryan López, English teacher · Updated September 2026

What it's NOT

fastidious does NOT translate to fastidioso.

To say "fastidioso" in English, use annoying.

What it IS

fastidious means meticulous / very particular about details.

Why it's confused

Spanish "fastidioso" describes something annoying, bothersome, or irritating. English "fastidious" describes someone very detail-oriented, careful, and demanding about details or cleanliness. It's not irritating, it's perfectionist.

How it's pronounced

fastidiousfas-TÍ-di-us

Tap the button to hear the real pronunciation.

Examples of correct use

English

She's fastidious about cleaning.

Spanish

Es muy meticulosa con la limpieza.

English

He's a fastidious editor.

Spanish

Es un editor muy minucioso.

A trick to remember it

Fastidious = meticulous/very particular. Annoying (Spanish "fastidioso") = annoying.

Mini quiz

"A fastidious worker" is a worker who is...

Frequently asked questions

What does "fastidious" mean in English?

"Fastidious" means "meticulous / very particular about details". It looks a lot like "fastidioso", which is exactly why it gets confused, but they don't mean the same thing.

How do you say "fastidioso" in English?

To say "fastidioso" in English, use "annoying". If you use "fastidious" instead, you would actually be saying "meticulous / very particular about details".

Do "fastidious" and "fastidioso" mean the same thing?

Spanish "fastidioso" describes something annoying, bothersome, or irritating. English "fastidious" describes someone very detail-oriented, careful, and demanding about details or cleanliness. It's not irritating, it's perfectionist.

Other confusing false friends

  • Confident

    Not confidente, it's self-assured

  • Molest

    Not molestar, it's to sexually abuse

  • Sensible

    Not sensible (emocional), it's practical / showing good judgment

More confusing false friends

Library, embarrassed, actually... the full list of words that look the same but mean something different.

View full list

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