Translation guide
Describes something or someone that lacks protection, safety, or defense. The Japanese expression depends on what is unprotected and the nature of the danger.
Describing a person, place, or thing that is exposed to danger, weather, or attack without any safeguard.
Literally 'defenseless' or 'unprotected'. Commonly used for people, places, or systems that are vulnerable because they lack protective measures.
He was attacked by the enemy in an unprotected state.
An unprotected computer is easily infected by viruses.
Directly means 'not protected'. Used in formal or technical contexts, such as describing unprotected data, skin, or equipment.
This data is unprotected, so anyone can access it.
Unprotected skin gets damaged by UV rays.
Similar to 無防備 but more formal and often used in military or technical contexts. Less common in everyday speech.
Unprotected civilians became victims of the attack.
Describing a person or group that is not safeguarded by laws, rights, or social support.
Means 'not legally protected'. Used when talking about rights, status, or vulnerable groups.
In that region, workers are legally unprotected.
Literally 'outside the scope of protection'. Used in policy or legal contexts to indicate something is not covered by protections.
Referring to sexual activity without a condom or other contraceptive/protection against STIs.
Commonly used to mean 'unprotected sex' in the sense of no contraception. Can also imply no STI prevention.
Unprotected sex carries a high risk of pregnancy.
Specifically means sex without a condom. Very direct and commonly understood.
Very casual slang meaning 'to do it raw' (without a condom). Used among friends or in informal settings.
Having unprotected sex is dangerous.
Describing a fighter or player who is not guarding or defending themselves.
Means 'guard is weak/loose'. Used in combat sports to describe a fighter who leaves themselves open to attack.
He is unprotected because his guard is weak, so he's susceptible to counters.
Same as the general 'unprotected state', but can be applied in sports contexts.
While 無防備 means 'unprotected', it is not used for sexual contexts. Use specific phrases like 避妊なしのセックス or コンドームなしのセックス instead.
無防備 emphasizes a lack of defense or preparedness, often implying vulnerability. 保護されていない is a more neutral, factual statement that something is not protected. Use 無防備 for people or situations where the lack of protection is notable or risky.
This type of data is unprotected.
Unprotected sex increases the risk of STIs.
The boxer was momentarily unprotected.