adjective
urgent; crucial
Synonyms: acute, burning, clamant, clamorous, climacteric, critical, crying, desperate, drastic, exigent, extreme, immoderate, imperative, importunate, instant, pressing
Antonyms: trivial, unimportant
adjective
terrible, ominous
Synonyms: afflictive, alarming, appalling, awful, black, calamitous, cataclysmic, catastrophic, cruel, deplorable, depressing, disastrous, dismal, distressing, dreadful, fearful, fierce, frightful, gloomy, grievous, grim, heartbreaking, horrible, horrid, lamentable, oppressing, portentous, redoubtable, regrettable, ruinous, scowling, shocking, terrific, ugly, unfortunate, woeful
Antonyms: fortunate, good, lucky, nice