How to Say "Someday" in Korean

언젠가

eonjen'ga[ˈɘ(ː)ɲd͡ʑe̞nɡa̠]

Someday in Korean is 언젠가 (eonjen'ga).

언젠가 is an adverb used to refer to an unspecified time in the future, equivalent to 'sometime' or 'someday'.

Meaning: sometime, at some time in the future (adv)

Which one should you use?

언젠가 is the standard form, while 언젠간 is an informal version of the same word.

The form 언젠가 can be used alongside both present-tense desires, such as 'I want to…', and future-tense intentions, such as 'I will…'.

eonjen'ga

In Korean, 언젠가 can also be used to refer to an unspecified time in the past, much like the English 'some time ago' in certain contexts. This is because the word focuses on the uncertainty of the timing rather than just the direction of time.
In casual conversation, if someone says 언젠가 regarding a plan, it is often a polite way of saying 'maybe never' without being direct.
Korean has a distinct word, 훗날, which also means 'someday' but specifically evokes a sense of a distant, legendary, or fateful future.

나는 언젠가 아프리카에 가고 싶어.
I want to go to Africa someday.
This sentence shows how to express a desire to visit a place using 언젠가.
Tatoeba #13146412 by SN_H, translation #253105 by CK
언젠가 텔레비전에 나오고 싶습니다.
I'd like to be on TV someday.
This sentence demonstrates using 언젠가 to express a wish to appear on television.
Tatoeba #13250537 by qiwiwi, translation #1936527 by CK
톰은 언젠가 돈도 많고 유명해지길 바란다.
Tom hopes to be rich and famous someday.
This sentence illustrates the use of 언젠가 when describing someone's hopes for the future.
Tatoeba #11107497 by intertime, translation #9271046 by CK
저는 언젠가 유명한 작가가 될 거예요.
Someday, I will become a famous writer.
내가 언젠간 세계를 여행할 거야.
Someday, I will travel the world.
3 more sentences on Tatoeba

Minjun and Seoyeon are talking about their future goals.

민준 Min-jun

언젠가 내 집을 사고 싶어.
eonjenga nae jibeul sago sipeo.
I want to buy my own house someday.
서연 Seo-yeon

정말 좋은 목표네, 민준아.
jeongmal joeun mokpyone, Minjun-a.
That is a really great goal, Minjun.
민준 Min-jun

서연이는 나중에 뭐 하고 싶어?
Seoyeon-ineun najunge mwo hago sipeo?
What do you want to do later, Seoyeon?
서연 Seo-yeon

나는 언젠가 세계 일주를 할 거야.
naneun eonjenga segye iljureul hal geoya.
I am going to travel around the world someday.

Sources

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