Gradual
The opposite of sudden is gradual.
Sudden
In the opposite direction to the course of acceleration.
The opposite of abrupt could be gradual, slow, or incremental.Calm, kind, nice...
The opposite would be sudden or abrupt, so the adjective could be hurried or instant.
The opposite would be sudden or abrupt, so the word could be quick, rapid, or swift.
A sudden change of direction of a wind, generally the exact opposite way.
The opposite of flash is fade. Flash typically refers to a sudden burst of light or energy, while fade refers to gradually diminishing or disappearing.
A power cut is when the power suddenly goes out or gets shut off. The opposite of this would be a power surge, which is a sudden surge of power.
Acute refers to a sudden onset or short duration of a disease or condition, typically characterized by intense symptoms. It is the opposite of chronic, which refers to long-lasting or recurring conditions.
The word 'fit' is a noun as a word for a sudden violent attack of a disease or condition; a sudden outburst; a word for something that is the right size and shape for someone or something. The noun forms for the verb to fit are fitter and the gerund, fitting. The noun forms for the adjective fit is fitness.
The antonyms of earthquake could be calm, stillness, or stability. These words convey the opposite idea of sudden shaking or movement of the ground.