suddenly (adv.)
1.quickly and without warning"he stopped suddenly"
2.happening unexpectedly"suddenly she felt a sharp pain in her side"
3.on impulse; without premeditation"he decided to go to Chicago on the spur of the moment" "he made up his mind suddenly"
suddenly (adv.)
↗ abrupt, brute, harsh, heavy-handed, sudden
suddenly (adv.)
abruptly, adventitiously, all at once, all of a sudden, bang, bluntly, brutally, dead, harshly, heavy-handedly, of a sudden, on the spur of the moment, plainly, roughly, short, slap, thereupon, unawares, unexpectedly, violently