Translation guide
The English word "bitter" covers a range of meanings from taste to emotion and experience. In Japanese, different words and expressions are used depending on the nuance. This guide organizes them by meaning to help you choose the most natural option.
Describing a sharp, unpleasant taste like coffee, dark chocolate, or medicine.
The most common and general adjective for a bitter taste. Used for food, drink, and metaphorical bitterness.
このコーヒーは苦い。
This coffee is bitter.
苦い薬を飲んだ。
I took bitter medicine.
Noun meaning 'bitterness' as a flavor quality. Often used in food descriptions.
このチョコレートは苦味が強い。
This chocolate has a strong bitterness.
Technically means 'astringent' (like unripe persimmon or strong tea), but sometimes translated as 'bitter' in English. Use only for that specific puckering sensation.
Not a direct synonym for 'bitter'. Refers to astringency, not bitterness.
渋いお茶が好きです。
I like astringent tea.
Feeling angry, hurt, or resentful because of a bad experience or unfair treatment.
Used metaphorically for bitter emotions, especially in set phrases like 苦い経験 (bitter experience) or 苦い思い出 (bitter memory).
それは苦い経験だった。
That was a bitter experience.
彼は苦い思い出を語った。
He talked about his bitter memories.
Expresses resentment or bitterness toward someone or a situation. Stronger emotional tone.
Means 'frustrating' or 'mortifying', often translated as 'bitter' when describing regret or disappointment. Common in sports or personal failure contexts.
Means 'painful' or 'hard', but can convey emotional bitterness in contexts like heartbreak or hardship.
別れが辛い。
The breakup is bitter.
Describing a dispute, rivalry, or relationship full of anger and resentment.
Means 'intense' or 'fierce', often used for bitter conflicts, arguments, or competition.
彼らは激しい論争をした。
They had a bitter argument.
激しい競争が続いている。
A bitter rivalry continues.
Means 'biting' or 'caustic', used for bitter criticism or remarks.
彼の辛辣な批判に傷ついた。
I was hurt by his bitter criticism.
Idiom meaning 'bitter strife' or 'internecine conflict', often within a family or organization.
相続をめぐって骨肉の争いが起きた。
A bitter dispute broke out over the inheritance.
Describing extremely cold weather that feels harsh or piercing.
Common phrase meaning 'severe cold'. Often used in weather reports.
今日は厳しい寒さだ。
It's bitterly cold today.
Idiomatic expression meaning 'bone-chilling cold', literally 'cold that cuts the body'.
外は身を切るような寒さだった。
It was bitterly cold outside.
Noun meaning 'intense cold' or 'bitter cold'. Often used in formal or written contexts.
Describing a pleasantly bitter flavor, often appreciated by adults.
Means 'slightly bitter' with a nuance of pleasantness. Commonly used for adult tastes like coffee, beer, or chocolate.
このビールはほろ苦くておいしい。
This beer is pleasantly bitter and delicious.
Loanword from English, used as a na-adjective. Often found in product names or trendy food descriptions.
ビターなチョコレートが好き。
I like bitter chocolate.
Referring to something unpleasant that must be accepted.
Direct translation of 'bitter truth'. Commonly understood.
彼は苦い真実を受け入れた。
He accepted the bitter truth.
Means 'a bitter decision' or 'a painful choice'. Used in formal contexts.
会社は苦渋の決断を下した。
The company made a bitter decision.
苦い (にがい) is for bitterness (like coffee), while 渋い (しぶい) is for astringency (like unripe fruit or strong tea). Using 渋い for 'bitter' can sound unnatural unless you mean that specific puckering sensation.
苦い is neutral or negative bitterness, while ほろ苦い adds a nuance of pleasantness or sophistication. Use ほろ苦い for enjoyable bitter flavors like dark chocolate or craft beer.
彼は苦笑いをした。
He gave me a bitter smile.
The phrase 苦笑い (にがわらい) is a common equivalent for 'bitter smile'.
薬の苦味が口に残った。
The medicine left a bitter taste in my mouth.
彼は恨めしそうに私を見た。
He looked at me bitterly.
負けて悔しい。
I'm bitter about losing.
極寒の地での生活は厳しい。
Life in a bitterly cold region is harsh.