Translation guide
The English word 'vital' has several distinct meanings. This guide helps learners choose the right Japanese expression depending on whether they mean 'essential/crucial', 'life-related', 'energetic', or 'fatal'.
Expressing that something is absolutely necessary or of the highest importance.
The most common and direct translation for 'vital' meaning 'indispensable'. Used in both spoken and written Japanese.
Water is vital for life.
His cooperation is vital for this project.
Means 'mandatory' or 'required'. Often used for rules, qualifications, or conditions. Slightly more formal than 不可欠.
Experience is vital for this job.
Literally 'extremely important'. A natural phrase when you want to emphasize the degree of importance.
This decision is vital.
Means 'crucial' or 'key', often used in the phrase 肝心なのは (the vital thing is...). Slightly more colloquial.
The vital thing is not to give up.
Describing something connected with life, living organisms, or life force.
The adjective form meaning 'of life' or 'life-related'. Used in phrases like 'vital signs' or 'vital functions'.
The doctor checked the patient's vital signs.
Means 'life support' or 'life-sustaining'. Used in medical or technical contexts.
Means 'vitality' or 'life force'. Used when 'vital' refers to energy or vigor.
Describing a person or thing that is lively, dynamic, or vigorous.
Means 'active', 'lively', or 'vigorous'. Commonly used for people, discussions, or activities.
She is a very vital child.
Means 'energetic' or 'vigorous', emphasizing effort and drive. Often used for work or action.
Means 'lively' or 'vivid', often describing expressions, eyes, or atmosphere. More poetic.
Describing something that causes death or is extremely dangerous.
Do not translate 'vital' as バイタル (baitaru) unless you are referring to 'vital signs' in a medical context. The loanword バイタル is only used in the compound バイタルサイン (vital signs) and is not a general adjective.
不可欠 (fukaketsu) means 'indispensable' and is used for things that are absolutely necessary. 必須 (hissu) means 'required' or 'mandatory' and is often used for conditions or qualifications. For example, 'Water is vital' uses 不可欠, while 'A license is vital' uses 必須.
The heart is a vital organ.
Combining 生命維持 (life support) and 不可欠 (indispensable) to convey 'vital organ'.
The vital life-support equipment is keeping him alive.
彼は活力に満ちている。
He is full of vital energy.
He is active in a vital way.
Her vital expression is impressive.
That mistake was vital (fatal).
That carelessness proved vital (fatal).