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adj C1 Advanced Uncommon

nocturnal

nok-TUR-nuhl

Nocturnal (adj) means Mainly active at night rather than during the day. Example: “Owls are nocturnal hunters that rarely appear in daylight.”

adj
1
Mainly active at night rather than during the day.
"Owls are nocturnal hunters that rarely appear in daylight."
"Bats are famously nocturnal creatures."
2
Happening at night.
"The city's nocturnal traffic noise kept her awake."

How to use nocturnal

Learner’s notes

In plain EnglishActive or occurring during the night rather than the day.

Common pairings
nocturnal animal nocturnal habits

Word forms

more nocturnal comparative, nocturnals plural, most nocturnal superlative

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Test yourself on “nocturnal” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

Owls are _____ hunters that rarely appear in daylight.

Etymology

From Latin nocturnus, derived from nox ("night"), the same root behind words like "equinox."

Origin: Latin

Antonyms

diurnal nonnocturnal

Related words

Rhymes for nocturnal

See all rhymes for nocturnal →

Frequently asked questions

What does “nocturnal” mean?

The word “nocturnal” means mainly active at night rather than during the day. In plain terms, active or occurring during the night rather than the day.

How do you pronounce “nocturnal”?

“Nocturnal” is pronounced nok-TUR-nuhl (/nɑkˈtɝ.nəl/ in IPA).

How do you use “nocturnal” in a sentence?

Here is “nocturnal” used in a sentence: “Owls are nocturnal hunters that rarely appear in daylight.”

What is another word for “nocturnal”?

Words with a similar meaning to “nocturnal” include lucifugous, nightish, nightly and nighttime.

What is the opposite of “nocturnal”?

The opposite of “nocturnal” — its antonyms — are diurnal and nonnocturnal.

What part of speech is “nocturnal”?

“Nocturnal” is an adjective.

Where does the word “nocturnal” come from?

The word “nocturnal” comes from Latin. From Latin nocturnus, derived from nox ("night"), the same root behind words like "equinox.".

Is “nocturnal” a common word?

“Nocturnal” is an uncommon word in modern English, usually learned at around the C1 level.

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Definitions: FreeDict original editorial