expression
unacceptable; unsatisfactory; not good enough
Used to express that something is not up to standard, cannot be accepted, or is disappointing. Often used in negative evaluations or complaints.
このレポートの内容はいただけない。
The content of this report is unacceptable.
彼の態度はまったくいただけない。
His attitude is completely unsatisfactory.
The negative potential form of the humble verb いただく (to receive), literally meaning 'cannot receive'. It has developed into a fixed expression meaning 'unacceptable' or 'unsatisfactory'.