Tiếng Việt · Word Candidate

ác

[ʔaːk̚˧˦] 🎙 Say it

Proposed by a contributor, not yet supported by evidence.

Sense 1

Both English Tiếng Việt

Meaning · English

(adjective) cruel; evil; inhumane; merciless

Nghĩa · Tiếng Việt

tàn ác

Machine-translated — suggest a fix

Where it’s used: Used Toàn quốc & hải ngoại · Vietnam-wide & diaspora

Examples

cái ácevil

Thiện, Ác, TàThe Good, the Bad, and the Ugly

Wiktionary example (CC BY-SA 4.0)

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

(adjective) having a harmful effect; intense and severe

Nghĩa · Tiếng Việt

có hại

Machine-translated — suggest a fix

Examples

rét ácintensely cold, freezing

Wiktionary example (CC BY-SA 4.0)

Sense 3

Both English Tiếng Việt

Meaning · English

(adjective) at a higher, more impressive level

Nghĩa · Tiếng Việt

tuyệt vời

Machine-translated — suggest a fix

Examples

ăn diện ácto dress up impressively

Wiktionary example (CC BY-SA 4.0)

Sense 4

Both English Tiếng Việt

Meaning · English

(noun) evil

Nghĩa · Tiếng Việt

tội ác

Machine-translated — suggest a fix

Examples

thiện (và) ácgood and evil

Wiktionary example (CC BY-SA 4.0)

Common questions

What does “ác” mean?

(adjective) cruel; evil; inhumane; merciless

Is “ác” formal or informal?

ác is generally formal.

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