Translation guide
The English word 'likely' expresses probability or expectation. In Japanese, this concept is conveyed through various adverbs, auxiliary verbs, sentence-ending expressions, and grammatical patterns, depending on the nuance and context.
Expressing that something is probable or expected to happen, similar to 'probably' or 'it is likely that'.
Common adverb meaning 'probably' or 'maybe'. Often used with 〜だろう or 〜と思う.
It will likely rain tomorrow.
I think he likely won't come.
Literally 'the possibility is high'. A formal and precise way to say something is likely.
This plan is likely to succeed.
Expresses that something seems likely based on appearance or evidence. Attaches to verb stems or adjective stems.
It looks likely to rain.
Formal adverb meaning 'probably' or 'likely'. Often used in written or formal speech.
He likely doesn't know that fact.
Describing a person or thing that has a tendency to do something or is prone to a certain state.
Indicates a tendency, often negative. Attaches to verb stems or nouns.
He is likely to be late.
In this weather, you're likely to get sick.
Means 'easy to' or 'prone to'. Attaches to verb stems.
This glass is likely to break.
Describing a story, explanation, or scenario that seems believable or probable.
Used as a sentence adverb to mean 'probably' or 'in all likelihood'.
Literally 'eight or nine out of ten'. Means 'in all likelihood' or 'most likely'.
In all likelihood, he will pass the exam.
多分 (たぶん) is the most common and casual way to say 'probably'. 恐らく (おそらく) is more formal and often used in writing or serious speech. Both are often paired with 〜だろう or 〜でしょう.
It'll probably be fine. (casual)
There will likely be no problem. (formal)
English 'likely' as an adjective (e.g., 'a likely candidate') does not have a direct one-word equivalent. Use phrases like 可能性が高い or ありそうな instead.