sudden onset
Without any warning
Sudden onset describes symptoms or conditions that appear abruptly rather than developing gradually: sudden onset hearing loss, sudden onset back pain.
The phrase belongs to medical and clinical contexts, distinguishing rapid-appearing conditions from those with slow, progressive development.
The sudden onset of her symptoms prompted an emergency room visit.
- abruptSharp and unexpected
- acuteIntensely severe or perceptive
- rapidMoving with haste
- swiftMoving with speed
- unexpectedNot anticipated beforehand
flash · flash flood · attack · heart attack · panic attack · stroke · episode · jolt · shock · hit like a truck · crash · burst · spike · flare · trigger · instant · without warning · out of nowhere
- stroke symptomsslurred speech, arm weakness, hemiparesis, hemiplegia, dysarthria
- dynamicspiano, forte, mezzo forte, fortissimo, pianissimo