Tiếng Việt · Word Attested

đại sự

[ʔɗaːj˧˨ʔ sɨ˧˨ʔ]

In real, traceable use. Part of the curated seed collection; community review is coming.

Sense 1

Both English Tiếng Việt

Meaning · English

(noun) important matter; big deal; major event; great thing

Nghĩa · Tiếng Việt

vấn đề quan trọng

Machine-translated — suggest a fix

Register: informal

Sources & notes

Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗

Sense 2

Both English Tiếng Việt

Meaning · English

(adverb) a lot, repeatedly, to the point of excessively

Nghĩa · Tiếng Việt

nhiều, lặp đi lặp lại, đến mức quá mức

Machine-translated — suggest a fix

Register: informal

Where it’s used: Used Miền Trung · Central Vietnam • Wiktionary labels this sense “Central”

Examples

Thằng ni ngồi vô mâm là ăn đại sự.

Đúng kiểu ông nhà tao 106 tuổi rồi mà các o, các chú, các bác vô chúc Tết là cứ mần đại sự: "Chúc ông sống lâu trăm tuổi".

Wiktionary example (CC BY-SA 4.0)

Equivalents & related

Near equivalent to the point Direct and concise, without unnecessary detail English Near equivalent khẩn trương (adjective) quick, resolute, to the point, without hesitation or dilly-dallying Tiếng Việt · via to the point Near equivalent mửa mật (adverb) with much effort, to the point of exhaustion Tiếng Việt · via to the point Near equivalent tê dại (adjective) stiff to the point of becoming senseless or paralyzed Tiếng Việt · via to the point Near equivalent cù nhây (adjective) joking around; fooling around (to the point of being annoying) Tiếng Việt · via to the point Near equivalent ô dề Over the top; doing the absolute most — extra to the point of comedy. Tiếng Việt · via to the point Near equivalent đường đột (adjective) too sudden or abrupt, to the point of being shocking, uncalled for, or even rude Tiếng Việt · via to the point Near equivalent nghèo đói (adjective) so poor up to the point of having no food Tiếng Việt · via to the point Near equivalent rẻ mạt (adjective) cheap almost to the point of being worthless; dirt-cheap Tiếng Việt · via to the point Near equivalent ê hề (adjective) in great abundance to the point that one feels unable to use all of said abundant thing Tiếng Việt · via to the point Near equivalent mất ăn mất ngủ overthinking, worrying, and stressing out to the point of not eating or sleeping well Tiếng Việt · via to the point Near equivalent từa lưa (adjective) having been excreted excessively to the point of making the face of the person crying look messy Tiếng Việt · via to the point Near equivalent long sòng sọc (adjective) extremely intense, to the point of popping blood vessels Tiếng Việt · via to the point Near equivalent sít sao (adjective) quick; resolute; to the point; without hesitation or dilly-dallying; continuous Tiếng Việt · via to the point Near equivalent tối tăm mặt mũi (adverb) being to heavily burdened by greater workload than one can withstand, nearly to the point of exhaustion, being overwhelmed Tiếng Việt · via to the point Near equivalent dày cộp (adjective) excessively thick (to the point of being cumbersome) Tiếng Việt · via to the point Near equivalent tham sinh uý tử to value one's life so much to the point of being cowardly Tiếng Việt · via to the point Near equivalent mụ mị (adjective) worn out to the point of being dazed Tiếng Việt · via to the point

Lighter cards are two steps away in the meaning graph — equivalents of equivalents, reached via the entry shown on the card.

Common questions

What does “đại sự” mean?

(noun) important matter; big deal; major event; great thing

Is “đại sự” formal or informal?

đại sự is generally informal.

What is the closest equivalent?

“to the point” (English) — near equivalent.