English Reference

Word

weighty

US/ˈweɪˌti/

UK/wˈeɪti/

Definitions

01physically heavy

B2 · Upper Intermediate

adj. having a lot of weight; heavy and difficult to lift.

adj. having considerable physical weight or mass.

“He struggled to carry the weighty boxes up the three flights of stairs.”

“The delivery driver required a trolley to move the weighty crates of machinery from the loading dock to the warehouse floor.”

Antonyms

02serious or important

C1 · Advanced Formal · Academic

adj. very important and serious; not something to be treated lightly.

adj. possessing great significance, influence, or importance; not trivial.

“The committee has a weighty decision to make about the school's future.”

“The prime minister addressed several weighty matters of national security during the emergency cabinet meeting this afternoon.”

03severe or difficult

C1 · Advanced Literary · Formal

adj. difficult to deal with or causing a lot of worry.

adj. burdensome, rigorous, or severe in nature; often used to describe responsibilities or consequences.

“She felt the weighty responsibility of looking after her younger siblings.”

“The judge acknowledged the weighty burden of proof required in such a complex criminal litigation.”

Real-World Examples

“India's top judges often make news for their rulings or pronunciations on weighty matters of law.”
BBC News 18 Aug 2026
“She fearlessly spoke out, forged new connections, took on weighty burdens.”
The Guardian 17 Sept 2026

Etymology

From Middle English weighti, weghti, wighti, equivalent to weight + -y. Cognate with Scots weichty, wechty, wichty, Saterland Frisian wichtich, West Frisian wichtich, Dutch wichtig, gewichtig, German wichtig, Danish vigtig, Swedish viktig. Compare typologically Russian ве́ский (véskij), весо́мый (vesómyj) (< вес (ves)). Also compare the same meaning development from cognate (by borrowing) Polish waga (< ... < Proto-Germanic *wēgō): ważny (whence Russian ва́жный (vážnyj)).

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

Word family

ADJECTIVE

weighty(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
Occasional
Level
C1 · Advanced
Updated

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English Reference