English Reference

Word

substantial

Phoneticssub·stan·tial, stress on the second syllable

US/səbˈstænʃəɫ/

UK/səbstˈænʃəl/

Definitions

01large in amount or size

B2 · Upper Intermediate

adj. large in size, value, or importance.

adj. considerable in importance, value, degree, or amount.

“The company made a substantial profit this year after cutting costs.”

“The research team received a substantial grant from the government, allowing them to expand their study into renewable energy sources over the next decade.”

02solidly built

B2 · Upper Intermediate

adj. strong and well-made.

adj. firmly constructed; sturdy and unlikely to break.

“They live in a substantial stone house that was built over a century ago.”

“The architect insisted on using substantial timber beams to ensure the roof could withstand the weight of heavy winter snowfall.”

Antonyms

03filling and nourishing

B2 · Upper Intermediate Cooking

adj. describing a meal that is large and makes you feel full.

adj. providing enough nourishment to be filling; satisfying in quantity and quality.

“After a long day of hiking, we sat down to a substantial dinner of beef stew.”

“The hotel provides a substantial breakfast buffet, designed to sustain guests who plan to spend the entire day exploring the city on foot.”

Antonyms

04real or actual

C1 · Advanced Academic · Formal

adj. real and existing in the physical world, rather than just an idea.

adj. having a physical existence; not imaginary or illusory.

“The police need substantial evidence before they can make an arrest.”

“The philosopher argued that while ideas are powerful, they lack the substantial nature of the physical objects we interact with daily.”

Collocations

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

Adjective

01. substantial amount

“The project required a substantial amount of time and resources to complete.”

adj + noun

02. substantial benefit

“The new tax laws will provide a substantial benefit to small business owners.”

adj + noun

03. substantial body

“There is a substantial body of evidence suggesting that the climate is changing rapidly.”

adj + noun

04. substantial challenge

“Integrating the two companies proved to be a substantial challenge for the management team.”

adj + noun

05. substantial change

“We have noticed a substantial change in the patient's condition since the treatment began.”

adj + noun

06. substantial contribution

“She made a substantial contribution to the field of theoretical physics.”

adj + noun

07. substantial difference

“There is a substantial difference between the two models in terms of performance.”

adj + noun

08. substantial amounts

09. substantial chance

10. barrier substantial

11. proponent substantial

12. robust substantial

Real-World Examples

“Men, particularly from Russia’s poorer regions, have been offered life-changing signing bonuses and salaries on open-ended contracts amounting to several years of local wages, alongside substantial payouts to their families if they are killed.”
The Guardian 14 Aug 2026
“UV also plays a substantial role in skin ageing, contributing to wrinkles and loosened folds.”
BBC News 22 Jun 2026
“And there are just seven months left for this minister to get a substantial number of significant policies past the Executive.”
BBC News 14 Aug 2026
“The size of the economic, fiscal and social prize would be substantial.”
The Guardian 9 Aug 2026

Etymology

From Middle English substancial, substantiall, from Old French substanciel, substantiel and its etymon Latin substantiālis.

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

Word family

ADJECTIVE

substantial(C1)

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.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL 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: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Common
Level
C1 · AdvancedOxford
Updated

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