bush league

US idiomatic broadly figuratively

(chiefly US, idiomatic) A professional sports association at the lower levels of minor league organization.

Japanese Meaning

プロスポーツ界における、マイナーリーグの最下層レベルの組織を指す（主に米国での慣用表現）。

He spent three seasons in the bush league before getting called up to the majors.

彼はメジャーに昇格する前に、下位のマイナーリーグで3シーズンを過ごした。

Sense（1）

(chiefly US, idiomatic) A professional sports association at the lower levels of minor league organization.

Sense（2）

(figuratively, by extension) A low-ranking or inferior level among groups, professions, organizations, etc.

bush leagues

（ plural ）