exigent
1. [ adjective ] demanding attention
Synonyms: insistent crying instant clamant
Examples:

"clamant needs" "a crying need" "regarded literary questions as exigent and momentous"- H.L.Mencken "insistent hunger" "an instant need"

Related terms: imperative
2. [ adjective ] requiring precise accuracy
Synonyms: exacting
Examples:

"an exacting job" "became more exigent over his pronunciation"

Related terms: demanding
Similar spelling:   exogen
  exigency
  exciseman
  exogenetic
  exocentric
  exogenic
  exogenous
  excision