歳さい未み満まん

suffix

under ... years of age; less than ... years old

Suffix attached to a number indicating an age threshold; used in formal or legal contexts to specify age limits.

• このアトラクションは6歳さい未み満まんの子こどもは利り用ようできません。

  Children under 6 years of age cannot use this attraction.

• 18歳さい未み満まんの方かたは保ほ護ご者しゃの同どう伴はんが必ひつ要ようです。

  Those under 18 years of age must be accompanied by a guardian.