all-important

adjective

all-im·​por·​tant ˌȯl-im-ˈpȯr-tᵊnt 

-tənt

: of very great or greatest importance

an all-important question

Synonyms of all-important

• essential
• necessary
• integral
• required
• needed
• needful
• vital
• critical
• crucial

Examples of all-important in a Sentence

that all-important item for a successful birthday party: a fancily decorated cake with candles

Recent Examples on the Web

Economists will get another read on the labor market tomorrow morning with the release of July's all-important jobs report. — Alex Harring, CNBC, 6 Aug. 2026

Trump has systematically starved Social Security of funds for customer service, a cynical effort to make this all-important program seem more burdensome to the seniors who rely on it. — Business Columnist, Los Angeles Times, 4 Aug. 2026

This is why onboard processing, automation and artificial intelligence are becoming all-important. — Martin Halliwell, Space.com, 3 Aug. 2026

Some omelet pans have a lid to eliminate mistakes in the all-important flipping process. — Bestreviews, Chicago Tribune, 3 Aug. 2026

Word History

First Known Use

1748, in the meaning defined above

Rhymes for all-important

• unimportant
• important

Kids Definition

all-important

adjective

all-im·​por·​tant

ˌȯ-lim-ˈpȯrt-ᵊnt, 

-ənt

: of very great importance

an all-important question