Synonyms for urgent

modified

1. Of immediate importance

   pressing, critical, necessary, imperative, important, compelling, indispensable, momentous, wanted, required, called for, demanded, salient, chief, paramount, essential, primary, vital, principal, absorbing, all-absorbing, not to be delayed, crucial, instant, leading, capital, overruling, foremost, exigent, crying; see also important 1.

   Antonyms trivial*, irrelevant, untimely.

2. Insistent

   compelling, hortatory, persuasive, imperious, solemn, grave, weighty, impressive, earnest, importunate, clamorous, hasty, breathless, precipitate, frantic, impetuous, imperative, convincing, beseeching, seductive, commanding, imploring, eager, zealous, anxious, moving, excited, impulsive, vigorous, enthusiastic, overpowering, masterful; see also resolute 2.

   Antonyms apologetic*, hesitant, diffident.