English Reference

Word

humidity

Phoneticshu·mid·i·ty, stress on the second syllable

US/hjuˈmɪdəti/

UK/hjuːmˈɪdɪti/

Uncountable noun

Definition

n. the amount of water vapour in the air. High humidity often makes the weather feel hotter than it really is.

n. the concentration of water vapour in the atmosphere. The term is typically uncountable and refers to the relative or absolute moisture content of the air.

Examples

“The high humidity makes the summer heat feel much worse.”

“Tropical rainforests are known for their intense humidity, which supports a vast variety of plant life.”

“As the temperature dropped during the evening, the relative humidity rose until the air reached its dew point and a thick fog began to settle over the valley.”

Examples

simple

“The high humidity makes the summer heat feel much worse.”

contextual

“Tropical rainforests are known for their intense humidity, which supports a vast variety of plant life.”

complex

“As the temperature dropped during the evening, the relative humidity rose until the air reached its dew point and a thick fog began to settle over the valley.”

Usage

Usually functions as an uncountable noun; often modified by adjectives like 'high', 'low', or 'relative'.

Pitfall

The weather is very humidity today.

The weather is very humid today.

Use the adjective 'humid' to describe the weather, and the noun 'humidity' to talk about the amount of moisture.

Etymology

From Middle English humidite, borrowed from Old French humidité, from Medieval Latin hūmiditās, from Latin ūmidus (“damp, moist, wet”). By surface analysis, humid + -ity.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Synonyms

moisturedampnessmugginess

Antonyms

drynessaridity

Word family

NOUN

humidity(B1)

ADJECTIVE

Related words

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated

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