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

Many would say that is far from the case with Supergirl, and now there’s an additional concern that Gunn has Supergirl writer Ana Nogueira writing both Teen Titans and the all-important Wonder Woman to come. — Paul Tassi, Forbes.com, 25 June 2026

Given Qatar’s shocking performance against Canada last time out, the Zmajevi will feel confident of getting the all-important victory. — Ben Church, CNN Money, 24 June 2026

Jaycee Horn Horn is a two-time Pro Bowl corner with the all-important interception stats — a league-second-best five INTs in 2025 — to validate his place on the Top 100 list. — Alex Zietlow, Charlotte Observer, 23 June 2026

The third-place playoff is on July 18, and the all-important final is on July 19. — Jibin Joseph, PC Magazine, 23 June 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