Tomodai
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ともあろう

Considering that ~ / Given that ~ is such a person/thing (criticism or disbelief) Used to express strong criticism, disappointment, or disbelief toward someone or something that should have acted better, given their status, role, or position.

N1

Meaning

Considering that ~ / Given that ~ is such a person/thing (criticism or disbelief) Used to express strong criticism, disappointment, or disbelief toward someone or something that should have acted better, given their status, role, or position.

Formation

Noun + ともあろう + が / に / を / は / も

Explanation

ともあろう is a formal, written expression used when the speaker criticizes or questions an action by saying:

“For someone/something of this level or position, this should not have happened.”

The noun before ともあろう represents a person or entity with authority, expertise, or responsibility.
The speaker feels that the action or situation fails to meet expectations associated with that status.

Key nuance:

  • Strong sense of norms and expectations

  • Expresses:

    • reproach

    • disbelief

    • disappointment

  • Emotion is present, but phrased in a controlled, formal way

  • Common in:

    • editorials

    • criticism

    • formal commentary

    • JLPT N1 reading passages

This grammar often implies:

“Such behavior is unacceptable for someone like this.”