ハイティーン

noun, noun which may take the genitive case particle 'no'

late teens

Refers to the older teenage years, roughly 16–19. A wasei-eigo term derived from English 'high teen', not used in English with this meaning.

wasei-eigo (Japanese-coined English), from high teen

• 彼かの女じょはまだハイティーンだ。