Synonyms of suddenly in English:

suddenly


See definition of suddenly

adverb

1‘she suddenly began to laugh’

SYNONYMS

immediately, instantaneously, instantly, in an instant, straight away, all of a sudden, at once, all at once, promptly, abruptly, in a trice, swiftly

unexpectedly, without warning, without notice, on the spur of the moment

informal straight off, out of the blue, in a flash, like a shot, before you can say Jack Robinson, before you can say knife

ANTONYMS

gradually