잊어버리다 vs 잊다

“forget”: 잊어버리다 or 잊다?

Source-verified September 7, 2026. AI-assisted and checked against NIKL dictionary sources.

The quick answer

잊어버리다 adds 모두 or 전혀; 잊다 does not.

잊어버리다

Its definitions add 모두 or 전혀.

오랫동안 사용하지 않았더니 나는 이메일 계정의 비밀번호를 잊어버리고 말았다.

After not using it for a long time, I forgot my email account password.

잊다

Its parallel definitions omit 모두 and 전혀.

그토록 중요한 회의를 잊다니 김 대리는 정신을 어디에 두고 사는지 모르겠다.

I cannot understand how Assistant Manager Kim could forget such an important meeting.

More word pairs

Explore more word pairs in Better Korean Dictionary.

Download on the App Store Get it on Google Play

Sources and method

Separate grounding and adversarial checks must pass before a guide is published. These guides are not human-reviewed.

Source examples are adapted from the National Institute of Korean Language's Korean-English Learners' Dictionary under its Attribution-ShareAlike terms.

Report a correction