Other forms: anathemas
Anathema is something you detest utterly. Anathema to him, absolute anathema, the very idea is anathema.
It is used as a noun without an article, which is unusual, so a thing is anathema rather than an anathema. In the church it was a formal curse cutting somebody off from the community entirely.
1nounanathemaSomething you detest utterly.
“The idea of working at weekends is anathema to him.”
anathema is a thing detested.
Greek anathema first meant something dedicated to a god, and later something accursed.
Latin
anathema
English, today
anathema
Built from
Borrowed from Latin anathema. Borrowed from Latin anathema (“curse, person cursed, offering”), itself a borrowing from Ancient Greek ἀνάθεμα (“something dedicated, especially dedicated to eternal damnation”), from ἀνατίθημι (“to set upon, offer as a votive gift”), from ἀνά (“upon”) + τίθημι (“to put, place”). The Ancient Greek term was influenced by Hebrew חרם, leading to the sense of "accursed," especially in Ecclesiastical writers.
Etymology from Wiktionary, CC BY-SA