English Reference

Word

slow

US/ˈsɫoʊ/

UK/slˈəʊ/

Definitions

01low speed

A1 · Beginner

adj. moving at a low speed or taking a long time to do something.

adj. moving, proceeding, or acting with low velocity; taking more time than is usual or expected.

“The traffic was very slow because of the heavy rain on the highway.”

“The elderly man made slow but steady progress up the steep hill, pausing occasionally to catch his breath.”

Synonyms

leisurelyunhurried

Antonyms

02not busy

B1 · Intermediate

adj. having little activity or not many customers.

adj. characterised by a lack of business activity or social excitement.

“Tuesday is usually a slow day at the restaurant, so we close early.”

“Economic growth remained slow throughout the first quarter, leading many investors to adopt a more cautious strategy.”

Synonyms

Antonyms

03wrong time

B1 · Intermediate

adj. showing a time that is earlier than the real time.

adj. indicating a time earlier than the correct time; used of a timepiece.

“My watch is five minutes slow, so I arrived late for the meeting.”

“The station clock was notoriously slow, causing several commuters to miss their connections despite arriving on the platform on time.”

Synonyms

Antonyms

04intellectually limited

B2 · Upper Intermediate Informal

adj. taking a long time to understand things.

adj. demonstrating a perceived lack of intellectual quickness or comprehension.

“He is a bit slow to catch on to jokes, but he is very kind.”

“The teacher noticed that while the student was slow to grasp abstract mathematical concepts, his mechanical skills were exceptional.”

Teaching tip

This sense can be offensive or derogatory; learners should use it with caution when describing people.

Synonyms

densedim-witted

Antonyms

05to reduce speed

A2 · Elementary

v. to move more slowly or to make something move more slowly.

v. to reduce the speed of something or to decelerate.

“You should slow down when you drive through a school zone.”

“The pilot began to slow the aircraft as it approached the runway, carefully monitoring the airspeed indicators.”

Usage

Often used with the particle 'down'.

Synonyms

deceleratebrake

06slowly

A2 · Elementary Informal

adv. at a low speed.

adv. at a low speed; often used in informal speech or short commands where 'slowly' might feel too formal.

“The sign on the road said 'Go Slow' because of the construction.”

“Even though the instructions were complex, he told his assistant to take it slow to avoid making any costly mistakes.”

Pitfall

Please drive more slowly.

Please drive slow.

While 'slowly' is the standard adverb, 'slow' is very common in informal speech and short commands like 'Go slow'.

Synonyms

Antonyms

07a slow song

B2 · Upper Intermediate Countable noun Music Informal

n. a song with a slow tempo, often for dancing.

n. a musical composition with a slow tempo, typically a ballad intended for slow dancing.

“The DJ played a few slows at the end of the wedding party.”

“After an hour of high-energy tracks, the band transitioned into a series of slows to allow the guests to cool down.”

Synonyms

Collocations

Common phrases and expressions where native English speakers use the word “slow” in context.

01. slow procedure 02. slow process

Etymology

From Middle English slow, slaw, from Old English slāw (“sluggish, inert, slothful, late, tardy, torpid, slow”), from Proto-West Germanic slaiw, from Proto-Germanic slaiwaz (“blunt, dull, faint, weak, slack”), possibly from Proto-Indo-European *sleyH-u- (“bad”). Cognate with Scots slaw (“slow”), West Frisian sleau (“slow, dull, lazy”), Dutch sleeuw (“blunt, dull”), Low German slee (“dull, sluggish”), German schlehe, schleh (“dull, exhausted, faint”), Danish sløv (“dull, torpid, drowsy”), Swedish slö (“slack, lazy”), Icelandic sljór (“dim-witted, slow”).

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

Word family

ADJECTIVE

Related words

Idioms

Domain

Music

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.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL 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: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Very common
Level
A1 · BeginnerOxford
Updated

QR code

englishreference.com/q/slow

English Reference