expression
Literary and somewhat formal expression meaning 'worthy of contempt' or 'despicable'. Used to describe actions, attitudes, or people that are morally repugnant.
彼の卑しむべき行為は許されない。
His despicable conduct is unforgivable.
それは卑しむべき考え方だ。
That is a contemptible way of thinking.
An adjective meaning 'lowly', 'vulgar', or 'greedy'. 卑しむべき is a more formal, literary expression derived from the verb 卑しむ (to despise) and means 'despicable' or 'contemptible'.
Also means 'contemptible', but 軽蔑すべき is more common in modern speech and writing. 卑しむべき carries a stronger literary or classical tone.
From the verb 卑しむ (to despise, to look down on) + the classical auxiliary べき (indicating obligation or worthiness). The verb 卑しむ itself derives from the adjective 卑しい (lowly, base).