English Reference

Word

deeply

US/ˈdipɫi/

UK/dˈiːpli/

Adverb of degree

Definitions

01very much

B1 · Intermediate

adv. to a very great degree, especially when talking about feelings or beliefs.

adv. to a profound extent; used to intensify verbs of feeling, belief, or psychological states.

“I am deeply sorry for the mistake I made yesterday.”

“The community was deeply affected by the closure of the local library, which had served as a vital social hub for decades.”

02far down or inside

B1 · Intermediate

adv. extending far down from the surface or far into the center of something.

adv. extending a significant distance downward or inward from a surface or edge.

“The roots of the old oak tree go deeply into the ground.”

“The explorers ventured deeply into the cave system, eventually discovering a series of underground lakes that had never been mapped.”

Synonyms

Antonyms

shallowly

03with a lot of air

B1 · Intermediate

adv. taking a lot of air into your lungs.

adv. referring to the intake of a large volume of air during respiration.

“Take a breath deeply and try to relax your shoulders.”

“The doctor asked the patient to breathe deeply while she listened to his lungs with a stethoscope.”

Synonyms

Antonyms

shallowly

04sleeping heavily

B2 · Upper Intermediate

adv. sleeping so well that it is difficult to wake you up.

adv. in a state of profound or heavy sleep; difficult to rouse.

“The baby was sleeping so deeply that the loud thunder didn't wake him.”

“Exhausted after the marathon, she slept so deeply that she completely missed her alarm the following morning.”

Synonyms

Antonyms

Collocations

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

Verb

01. deeply embed

“The values of the company are deeply embedded in its corporate culture.”

adv + verb

02. deeply concerned

03. deeply embedded

04. deeply saddened

05. deeply concerning

06. deeply troubling

07. deeply missed

08. deeply personal

09. deeply shocked

Real-World Examples

“Every August, the Petronio Álvarez Pacific Music Festival brings together the music, food, crafts and traditions of Colombia’s Pacific region, which is deeply tied to Cali’s identity.”
UN News 13 Aug 2026
“Dogs may understand our emotions more deeply than scientists realized.”
ScienceDaily 11 Aug 2026
“Second, we live in a deeply ageist society.”
The Guardian 4 Aug 2026

Etymology

From Middle English depely, deplike, deopliche, from Old English dēoplīċe (“deeply”, adverb), from dēoplīc (“deep”), equivalent to deep + -ly.

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

Word family

ADJECTIVE

ADVERB

deeply(B2)

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.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL 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: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Common
Level
B2 · Upper IntermediateOxford
Updated

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