suddenly, promptly, quickly: 갑자기, 갑제기, 갑재기, 급자기, 깝자기, 깝재기, 감째기, 깜째기, ᄁᆞᆷ재기

sudden, urgent: 급ᄒᆞ다

all of sudden, out of nowhere, to one's surprise, suddenly: 난디엇이

accidental, sudden, unexpected: 난데없다, 난듸읏다

suddenly: 문뜩, 무뜩

out of nowhere, to one's surprise: 돌연히

at once, right away, on the spot: 당장에, 담박, 당장

at a breath, at a stretch, at a stroke, at once, by one effort, immediately, on the spot, right away: 단작에, 대박에, 데빡에

at once, on the spot, right away: 단작, 대박, 데빡

immediately: 버루기〜버룩이, 버륵이, 직시, 즉시

at once, immediately: 담박에

soon: 착ᄒᆞ게, 곧, 어ᄀᆞ라, 어가라, 어그라, 워ᄀᆞ라, 어거라, 어그레, 얼른, 거쓴, 거씬, 커쓴, 커씬, 걸른, 얼풋

suddenly, abruptly: 연제엇이, 뜽금읏이, 뜬금어시, 뜽금에읏이

the same day, the very day: 당일