Translation guide
The English word 'youngest' refers to the person or thing with the least age, most recent birth, or lowest seniority in a group. In Japanese, expressing this concept depends on context: family relationships, formal titles, or general comparisons. The most common way is to use the noun 末っ子 (suekko) for the youngest child in a family, or the prefix 最年少 (sainenshō) for the youngest person in a formal group. For general comparisons, phrases like 一番年下 (ichiban toshishita) are used. Note that Japanese often uses specific kinship terms rather than a direct translation of 'youngest'.
Referring to the youngest sibling or child in a family context.
The most common and natural word for the youngest child in a family. It carries a nuance of being doted on or having a certain personality typical of the youngest.
彼は末っ子だから、甘えん坊だ。
He's the youngest child, so he's spoiled.
末っ子はいつも家族の中心だ。
The youngest child is always the center of the family.
Literally 'the lowest child', a straightforward way to say youngest child. Slightly more descriptive than 末っ子.
一番下の子はまだ小学生です。
The youngest child is still in elementary school.
Formal or written term for the youngest child, often used in official documents or literature.
Referring to the person with the lowest age in a group, such as in a class, team, or organization.
The most common way to say 'youngest' in terms of age. It can be used as a noun phrase or with の to modify a noun.
彼がチームで一番年下です。
He is the youngest on the team.
一番年下のメンバーは18歳です。
The youngest member is 18 years old.
A slightly more casual or conversational way to say 'youngest in age', literally 'age is the lowest'.
このクラスで年が一番下なのは私です。
I'm the youngest in this class.
Referring to the person with the least experience or shortest tenure in a workplace or organization, not necessarily age.
Literally 'the newest person', used to refer to the most junior member in terms of experience or time in the group.
彼は一番の新人だから、まだ仕事に慣れていない。
He's the youngest (most junior) so he's not used to the work yet.
Colloquial term for the lowest-ranking or most junior person. 下っ端 means 'underling' or 'lowest rank'.
一番下っ端だから、雑用ばかりだ。
Since I'm the youngest (most junior), I just do odd jobs.
Formal term for the youngest or most junior member, often used in business or sports contexts.
最若手の研究者がプロジェクトをリードしている。
The youngest researcher is leading the project.
Describing the birth order position as the youngest without specifying 'child'.
Literally 'the lowest among siblings', a clear way to state you are the youngest sibling.
私は兄弟の一番下です。
I'm the youngest among my siblings.
As above, 末っ子 inherently means youngest child, so it can be used here as well.
末っ子なので、よく甘やかされた。
Since I'm the youngest, I was often spoiled.
Do not directly translate 'youngest' as 若い (wakai) plus superlative. 一番若い (ichiban wakai) can mean 'youngest' but often sounds like 'most youthful' rather than indicating birth order or seniority. Use context-appropriate terms.
末っ子 (suekko) is a specific noun for the youngest child and carries emotional connotations (e.g., being spoiled). 一番下の子 (ichiban shita no ko) is a more neutral, descriptive phrase. Both are common, but 末っ子 is more idiomatic.
彼女は家族で一番年下です。
She is the youngest in her family.
一番下の弟は医者です。
My youngest brother is a doctor.
He inherited the property as the youngest child.
Formal term for 'youngest', often used in official contexts like 'youngest ever' or 'youngest member of an organization'. It emphasizes the record or status.
彼は史上最年少でオリンピックに出場した。
He participated in the Olympics as the youngest ever.
最年少の社長として注目されている。
He is attracting attention as the youngest company president.