Translation guide
The concept of irreligion, or the absence of religion, is expressed in Japanese through terms describing indifference, lack of belief, or non-affiliation. Direct translations are rare in everyday speech; instead, descriptive phrases are more natural.
To describe a person or stance as irreligious, non-religious, or indifferent to religion in a general sense.
The most direct and common term for 'irreligion' or 'non-religious'. It can describe a person, a stance, or a state. Often used in surveys or formal contexts.
私は無宗教です。
I am not religious.
無宗教の人が増えている。
The number of non-religious people is increasing.
Literally 'have no interest in religion'. A natural, conversational way to express irreligion as a lack of interest.
彼は宗教に関心がない。
He has no interest in religion.
Means 'not having a specific religion'. Used when emphasizing lack of affiliation rather than active disbelief.
特定の宗教を持たない家庭で育った。
I grew up in a household without a specific religion.
Atheism, specifically the belief that there is no god. More narrow than general irreligion. Often used in philosophical or debate contexts.
彼は無神論者だ。
He is an atheist.
To express a casual, indifferent, or apathetic attitude toward religion, common in Japanese society.
A noun phrase meaning 'indifference to religion'. Often used to describe a societal trend.
若者の宗教に無関心な態度が目立つ。
Young people's indifferent attitude toward religion stands out.
A very casual way to say 'I don't care' about religion. Use only in informal settings.
Can sound dismissive or rude; avoid in polite conversation.
宗教なんてどうでもいい。
I couldn't care less about religion.
To state that one does not believe in any religion or deity.
Literally 'have no faith/belief'. A straightforward way to say you lack religious belief.
私は特に信仰はない。
I don't have any particular faith.
Specifically 'I don't believe in God'. More direct about theistic belief, but can be used for monotheistic contexts.
彼女は神を信じていないと言った。
She said she doesn't believe in God.
To describe the common Japanese cultural stance of participating in religious rituals without personal belief.
Means 'having a weak religious sentiment'. Often used to describe the Japanese mindset of being culturally involved but not devout.
日本人は宗教心が薄いと言われる。
Japanese people are said to have weak religious sentiment.
Religion as custom/habit. Highlights the distinction between cultural practice and belief.
多くの日本人にとって宗教は習慣に過ぎない。
For many Japanese, religion is merely a custom.
The English word 'irreligion' is formal and rarely used in conversation. In Japanese, 無宗教 (mushūkyō) is the closest term but is also somewhat formal. In casual speech, people often use phrases like 宗教に関心がない (I'm not interested in religion) or simply state they have no faith.
Many Japanese people identify as 無宗教 but still participate in Buddhist and Shinto rituals. This is often described as 'cultural religion' rather than personal belief. When discussing irreligion in Japan, it's helpful to clarify whether you mean lack of belief, lack of affiliation, or indifference.