Urgent
Acute
Synonyms: Acute, pressing, desperate, crucial, serious, crying, compelling, extreme, great, terrible, grave, dire, critical, sore, intense, burning, drastic, life-and-death, very great, and parlous.
Emergency
Synonyms: Emergency, top-priority, vital, hurried, hasty, quick, swift, high-priority, important, crucial, rushed, fast, rapid, and hurry-up.
Insistent
Synonyms: Insistent, determined, tenacious, dogged, unrelenting, demanding, entreating, begging, repeated, continuous, exigent, persistent, resolute, obstinate, pressing, importunate, earnest, pleading, clamorous, unremitting, and incessant.
Example Sentences
"She received an urgent phone call.
" "The doctor had an urgent message.
" "He felt an urgent need to respond.
" "This situation requires urgent attention now.