English · Word Candidate

necessary

/ˈnɛs.ə.sɹi/

Proposed by a contributor, not yet supported by evidence.

Also seen as: necessarier · necessariest

Sense 1

Both English Tiếng Việt

Meaning · English

Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.

Nghĩa · Tiếng Việt

Bắt buộc, cần thiết

Machine-translated — suggest a fix

Adjective

Although I wished to think that all was false, it was yet necessary that I, who thus thought, must in some sense exist.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Both English Tiếng Việt

Meaning · English

Unavoidable, inevitable.

Nghĩa · Tiếng Việt

Không thể tránh khỏi

Machine-translated — suggest a fix

Adjective

If it is absolutely necessary to use public computers, you should plan ahead and forward your e-mail to a temporary, disposable account.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

What does “necessary” mean?

Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.

Is “necessary” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.