all-important

adjective

all-im·​por·​tant ˌȯl-im-ˈpȯr-tᵊnt 

-tənt

: of very great or greatest importance

an all-important question

Synonyms

• critical
• essential
• imperative
• indispensable
• integral
• must-have
• necessary
• necessitous
• needed
• needful
• required
• requisite
• vital

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

Tax professionals strategize and provide all-important context that can optimize the tax outcome for each particular case. —Virginia La Torre Jeker, Forbes.com, 11 May 2025

In exchange for helping to remove debris from the all-important mangroves (and keeping the Keys’ waterways a beautiful treasure), guests are treated to a scenic boat ride. —Angela Caraway-Carlton, Miami Herald, 8 May 2025

Now, the favorites, Ruben Amorim's side, is trying to secure that all-important path back to the Champions League. —Kilty Cleary, MSNBC Newsweek, 8 May 2025

The push out of Vietnam comes ahead of the all-important reciprocal tariff deadline as companies look to bring inventory into the U.S. —Glenn Taylor, Sourcing Journal, 7 May 2025

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