Translation guide
The English word 'significant' can mean 'important', 'large in amount/effect', or 'meaningful'. This guide helps learners choose natural Japanese expressions for each nuance.
Expressing that something is important, notable, or has a major impact.
The most common and neutral word for 'important' or 'significant'. Used for matters, decisions, roles, etc.
This is a significant issue.
He played a significant role.
Means 'profoundly meaningful' or 'significant' in a deeper, often emotional or philosophical sense. Used for experiences, words, events.
His words were very significant.
Often used for serious, grave, or weighty matters, such as crimes, problems, or responsibilities. Slightly more formal.
We are facing a significant decision.
Describing a considerable, noticeable, or substantial quantity, change, or influence.
A common, slightly casual way to say 'considerable' or 'significant' amount/degree. Used before nouns.
A significant number of people gathered.
There has been significant progress.
Means 'considerable', 'substantial', or 'fairly large'. Used for amounts, effort, damage, etc.
Significant effort is required.
Literally 'big', but often used naturally for 'significant' impact, difference, change, etc.
Used in scientific or technical contexts to indicate that a result is unlikely due to chance.
The standard technical term for 'statistically significant'.
The difference was not statistically significant.
Conveying a hidden or special meaning, often through a look, gesture, or silence.
重要 is the safest for 'important/significant' in general contexts. 重大 is for serious/grave matters. かなりの is for 'considerable' amounts or degrees, not for importance.
The loanword シグニフィカント exists but is rarely used outside very technical or academic contexts. It can sound unnatural in everyday speech.
Means 'remarkable', 'striking', or 'significant' (often positive change or improvement). Slightly formal/written.
It achieved significant growth.
大きな影響を与えた。
It had a significant influence.