All-important
All-important adjective - Impossible to do without.
Usage example: that all-important item for a successful birthday party: a fancily decorated cake with candles
Key and all-important are semantically related. in essential topic. In some cases you can use "Key" instead an adjective phrase "All-important", when it comes to topics like vital.
Key
Key adjective - Coming before all others in importance.
All-important and key are semantically related. Sometimes you can use "All-important" instead an adjective "Key".
Mutual synonyms
Related pairs
- prime and all-important
- prime and key
- critical and all-important
- critical and key
- principal and all-important
- principal and key
- momentous and all-important
- momentous and key
- important and all-important
- important and key
- necessary and all-important
- necessary and key
- essential and all-important
- essential and key
Both words in one sentence
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Ripper writes out on a sheet of paper (Peace On Earth, Purity Of Essence, POE) are not only a key to understanding his conspiratorial paranoia but also an important clue to figuring out the all-important "Recall Launch" codes that can stop World War III.
Source: Room Full of Crazy -
Nice Job Breaking It, Hero: Deon starts the whole affair after being turned down for his AI project — he steals components for a robot, plus the all-important Guard Key which can be used to reprogram every police robot in the city, and ends up placing them in the hands of gangsters.
Source: Film / Chappie
Cite this Source
Key and All-important. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/all-important/key
All-important & Key. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/all-important/key>.
Key or All-important. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/all-important/key.