Translation guide
Expressing disappointment in Japanese depends on the nuance: mild letdown, regret over an outcome, or feeling let down by someone. Common expressions range from casual interjections to formal apologies.
Expressing a light sense of letdown or sympathy when something doesn't go as hoped.
The most common word for 'disappointing' or 'too bad'. Used in casual and formal settings.
Expresses personal disappointment or feeling let down. Often used with する.
I'm disappointed.
I was disappointed by the news.
Casual interjection expressing mild disappointment or resignation.
Oh man, it started raining.
Expressing that someone's actions or words have disappointed you personally.
To disappoint someone. Often used in the passive form がっかりさせられる.
He disappointed me.
I'm disappointed in you.
Literally 'expectation-miss'. Describes something or someone that didn't meet expectations.
Formal word for 'to be disappointed'. Stronger and more serious than がっかり.
I was disappointed by his behavior.
Expressing disappointment about a result or situation, often with a sense of regret.
がっかり is casual and expresses personal letdown. 失望 is formal and implies a deeper, more serious disappointment, often with a sense of disillusionment.
I was disappointed because the movie was boring.
I was disillusioned by the government's response.
失望 is quite strong and can sound overly dramatic in everyday situations. Stick to がっかり or 残念 for minor disappointments.
His performance was disappointing.