flat-chestedness

uncountable

The state of being flat-chested; the state of having small breasts.

Japanese Meaning

平胸の状態; 胸が小さい状態

Her flat-chestedness never stopped her from competing confidently in the swimsuit contest.

彼女は胸が小さいことであっても、水着コンテストに自信を持って出場し続けた。

Sense（1）

The state of being flat-chested; the state of having small breasts.

Flat-chestedness was a big problem when I was in school.