out of one's league

Prepositional phrase

In a situation in which one is mismatched with one or more others whose accomplishments, preparedness, or other characteristics are on a significantly higher or lower level than one's own.

Japanese Meaning

自分の実力や魅力に比べて、手に余る（または釣り合わない）相手との関係を指す表現。 / 能力、準備、その他の特性が大きく異なる相手との状況を表し、例えば恋愛や交友関係でしばしば用いられる。

What is this buttons?

When one attends a conference of Nobel laureates, one can feel out of one's league.

Google Translation / DeepL Translation

ノーベル賞受賞者たちの会議に参加すると、人は自分が場違いだと感じることがある。

Details

Sense（1）

In a situation in which one is mismatched with one or more others whose accomplishments, preparedness, or other characteristics are on a significantly higher or lower level than one's own.