After his business failed, he became embarrassed and couldn't pay his bills.

embarrassed 是动词 embarrass 的过去分词形式，在这里作形容词使用。embarrass 来自法语 embarrasser（使困窘），本意是"使窘迫、使尴尬"。 embarrassed 形容人感到难堪、窘迫或尴尬的状态，通常是因为做了令人羞愧的事或处于不利处境。