important : Idioms & Phrases

• adjective satellite of the greatest importance
  all important; crucial; of the essence; essential.
  
  • the all-important subject of disarmament
  • crucial information
  • in chess cool nerves are of the essence

WordNet

• adjective satellite of the greatest importance
  all important; crucial; of the essence; essential.
  
  • the all-important subject of disarmament
  • crucial information
  • in chess cool nerves are of the essence

WordNet

• noun a person whose actions and opinions strongly influence the course of events
  personage; influential person.
  

WordNet

• adjective satellite impressive in appearance
  

WordNet

• adjective satellite having or showing feelings of unwarranted importance out of overbearing pride
  chesty; arrogant.
  
  • an arrogant official
  • arrogant claims
  • chesty as a peacock

WordNet

Self`-im*por"tant adjective

Definitions

1. Having or manifesting an exaggerated idea of one's own importance or merit.

Webster 1913

• noun an important or influential (and often overbearing) person
  high muckamuck; high-up; dignitary; panjandrum; VIP.
  

WordNet