Definition of all-important in English:

all-important

Line breaks: all-import¦ant

adjective

Vitally important; crucial: the town’s all-important tourist industry
More example sentences
  • So it could be an important part of a Tory manifesto, but not the all-important issue.
  • So long as the horse was all-important in war, the upper classes were all-important, because they could ride.
  • Of course, the all-important marketing skill was tellingly lacking in Murthy.
Synonyms
vital, essential, indispensable, crucial, key, necessary, needed, required, requisite, important, vitally important, of the utmost importance, of great consequence, of the essence, critical, life-and-death, imperative, mandatory; urgent, pressing, burning, compelling, acute; paramount, pre-eminent, high-priority, significant, consequential

Definition of all-important in:

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Pronunciation: ˌ(h)yo͞oməˈresk
noun
a short, lively piece of music